20757557520

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{87629}}^1$

素因数の和:87702

約数の個数: 240

約数和(自身を含む): 81365506560

約数和(自身を除く): 60607949040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 47, 48, 56, 60, 63, 70, 72, 80, 84, 90, 94, 105, 112, 120, 126, 140, 141, 144, 168, 180, 188, 210, 235, 240, 252, 280, 282, 315, 329, 336, 360, 376, 420, 423, 470, 504, 560, 564, 630, 658, 705, 720, 752, 840, 846, 940, 987, 1008, 1128, 1260, 1316, 1410, 1645, 1680, 1692, 1880, 1974, 2115, 2256, 2520, 2632, 2820, 2961, 3290, 3384, 3760, 3948, 4230, 4935, 5040, 5264, 5640, 5922, 6580, 6768, 7896, 8460, 9870, 11280, 11844, 13160, 14805, 15792, 16920, 19740, 23688, 26320, 29610, 33840, 39480, 47376, 59220, 78960, 87629, 118440, 175258, 236880, 262887, 350516, 438145, 525774, 613403, 701032, 788661, 876290, 1051548, 1226806, 1314435, 1402064, 1577322, 1752580, 1840209, 2103096, 2453612, 2628870, 3067015, 3154644, 3505160, 3680418, 3943305, 4118563, 4206192, 4907224, 5257740, 5520627, 6134030, 6309288, 7010320, 7360836, 7886610, 8237126, 9201045, 9814448, 10515480, 11041254, 12268060, 12355689, 12618576, 14721672, 15773220, 16474252, 18402090, 20592815, 21030960, 22082508, 24536120, 24711378, 27603135, 28829941, 29443344, 31546440, 32948504, 36804180, 37067067, 41185630, 44165016, 49072240, 49422756, 55206270, 57659882, 61778445, 63092880, 65897008, 73608360, 74134134, 82371260, 86489823, 88330032, 98845512, 110412540, 115319764, 123556890, 144149705, 147216720, 148268268, 164742520, 172979646, 185335335, 197691024, 220825080, 230639528, 247113780, 259469469, 288299410, 296536536, 329485040, 345959292, 370670670, 432449115, 441650160, 461279056, 494227560, 518938938, 576598820, 593073072, 691918584, 741341340, 864898230, 988455120, 1037877876, 1153197640, 1297347345, 1383837168, 1482682680, 1729796460, 2075755752, 2306395280, 2594694690, 2965365360, 3459592920, 4151511504, 5189389380, 6919185840, 10378778760, 20757557520]

約数ペア:

[(1, 20757557520), (2, 10378778760), (3, 6919185840), (4, 5189389380), (5, 4151511504), (6, 3459592920), (7, 2965365360), (8, 2594694690), (9, 2306395280), (10, 2075755752), (12, 1729796460), (14, 1482682680), (15, 1383837168), (16, 1297347345), (18, 1153197640), (20, 1037877876), (21, 988455120), (24, 864898230), (28, 741341340), (30, 691918584), (35, 593073072), (36, 576598820), (40, 518938938), (42, 494227560), (45, 461279056), (47, 441650160), (48, 432449115), (56, 370670670), (60, 345959292), (63, 329485040), (70, 296536536), (72, 288299410), (80, 259469469), (84, 247113780), (90, 230639528), (94, 220825080), (105, 197691024), (112, 185335335), (120, 172979646), (126, 164742520), (140, 148268268), (141, 147216720), (144, 144149705), (168, 123556890), (180, 115319764), (188, 110412540), (210, 98845512), (235, 88330032), (240, 86489823), (252, 82371260), (280, 74134134), (282, 73608360), (315, 65897008), (329, 63092880), (336, 61778445), (360, 57659882), (376, 55206270), (420, 49422756), (423, 49072240), (470, 44165016), (504, 41185630), (560, 37067067), (564, 36804180), (630, 32948504), (658, 31546440), (705, 29443344), (720, 28829941), (752, 27603135), (840, 24711378), (846, 24536120), (940, 22082508), (987, 21030960), (1008, 20592815), (1128, 18402090), (1260, 16474252), (1316, 15773220), (1410, 14721672), (1645, 12618576), (1680, 12355689), (1692, 12268060), (1880, 11041254), (1974, 10515480), (2115, 9814448), (2256, 9201045), (2520, 8237126), (2632, 7886610), (2820, 7360836), (2961, 7010320), (3290, 6309288), (3384, 6134030), (3760, 5520627), (3948, 5257740), (4230, 4907224), (4935, 4206192), (5040, 4118563), (5264, 3943305), (5640, 3680418), (5922, 3505160), (6580, 3154644), (6768, 3067015), (7896, 2628870), (8460, 2453612), (9870, 2103096), (11280, 1840209), (11844, 1752580), (13160, 1577322), (14805, 1402064), (15792, 1314435), (16920, 1226806), (19740, 1051548), (23688, 876290), (26320, 788661), (29610, 701032), (33840, 613403), (39480, 525774), (47376, 438145), (59220, 350516), (78960, 262887), (87629, 236880), (118440, 175258)]