20454120

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:189

約数の個数: 160

約数和(自身を含む): 70567200

約数和(自身を除く): 50113080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 59, 60, 72, 81, 90, 107, 108, 118, 120, 135, 162, 177, 180, 214, 216, 236, 270, 295, 321, 324, 354, 360, 405, 428, 472, 531, 535, 540, 590, 642, 648, 708, 810, 856, 885, 963, 1062, 1070, 1080, 1180, 1284, 1416, 1593, 1605, 1620, 1770, 1926, 2124, 2140, 2360, 2568, 2655, 2889, 3186, 3210, 3240, 3540, 3852, 4248, 4280, 4779, 4815, 5310, 5778, 6313, 6372, 6420, 7080, 7704, 7965, 8667, 9558, 9630, 10620, 11556, 12626, 12744, 12840, 14445, 15930, 17334, 18939, 19116, 19260, 21240, 23112, 23895, 25252, 28890, 31565, 31860, 34668, 37878, 38232, 38520, 43335, 47790, 50504, 56817, 57780, 63130, 63720, 69336, 75756, 86670, 94695, 95580, 113634, 115560, 126260, 151512, 170451, 173340, 189390, 191160, 227268, 252520, 284085, 340902, 346680, 378780, 454536, 511353, 568170, 681804, 757560, 852255, 1022706, 1136340, 1363608, 1704510, 2045412, 2272680, 2556765, 3409020, 4090824, 5113530, 6818040, 10227060, 20454120]

約数ペア:

[(1, 20454120), (2, 10227060), (3, 6818040), (4, 5113530), (5, 4090824), (6, 3409020), (8, 2556765), (9, 2272680), (10, 2045412), (12, 1704510), (15, 1363608), (18, 1136340), (20, 1022706), (24, 852255), (27, 757560), (30, 681804), (36, 568170), (40, 511353), (45, 454536), (54, 378780), (59, 346680), (60, 340902), (72, 284085), (81, 252520), (90, 227268), (107, 191160), (108, 189390), (118, 173340), (120, 170451), (135, 151512), (162, 126260), (177, 115560), (180, 113634), (214, 95580), (216, 94695), (236, 86670), (270, 75756), (295, 69336), (321, 63720), (324, 63130), (354, 57780), (360, 56817), (405, 50504), (428, 47790), (472, 43335), (531, 38520), (535, 38232), (540, 37878), (590, 34668), (642, 31860), (648, 31565), (708, 28890), (810, 25252), (856, 23895), (885, 23112), (963, 21240), (1062, 19260), (1070, 19116), (1080, 18939), (1180, 17334), (1284, 15930), (1416, 14445), (1593, 12840), (1605, 12744), (1620, 12626), (1770, 11556), (1926, 10620), (2124, 9630), (2140, 9558), (2360, 8667), (2568, 7965), (2655, 7704), (2889, 7080), (3186, 6420), (3210, 6372), (3240, 6313), (3540, 5778), (3852, 5310), (4248, 4815), (4280, 4779)]