20358520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:102

約数の個数: 192

約数和(自身を含む): 62052480

約数和(自身を除く): 41693960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 17, 20, 26, 28, 34, 35, 40, 47, 49, 52, 56, 65, 68, 70, 85, 91, 94, 98, 104, 119, 130, 136, 140, 170, 182, 188, 196, 221, 235, 238, 245, 260, 280, 329, 340, 364, 376, 392, 442, 455, 470, 476, 490, 520, 595, 611, 637, 658, 680, 728, 799, 833, 884, 910, 940, 952, 980, 1105, 1190, 1222, 1274, 1316, 1547, 1598, 1645, 1666, 1768, 1820, 1880, 1960, 2210, 2303, 2380, 2444, 2548, 2632, 3055, 3094, 3185, 3196, 3290, 3332, 3640, 3995, 4165, 4277, 4420, 4606, 4760, 4888, 5096, 5593, 6110, 6188, 6370, 6392, 6580, 6664, 7735, 7990, 8330, 8554, 8840, 9212, 10387, 10829, 11186, 11515, 12220, 12376, 12740, 13160, 15470, 15980, 16660, 17108, 18424, 20774, 21385, 21658, 22372, 23030, 24440, 25480, 27965, 29939, 30940, 31960, 33320, 34216, 39151, 41548, 42770, 43316, 44744, 46060, 51935, 54145, 55930, 59878, 61880, 72709, 78302, 83096, 85540, 86632, 92120, 103870, 108290, 111860, 119756, 145418, 149695, 156604, 171080, 195755, 207740, 216580, 223720, 239512, 290836, 299390, 313208, 363545, 391510, 415480, 433160, 508963, 581672, 598780, 727090, 783020, 1017926, 1197560, 1454180, 1566040, 2035852, 2544815, 2908360, 4071704, 5089630, 10179260, 20358520]

約数ペア:

[(1, 20358520), (2, 10179260), (4, 5089630), (5, 4071704), (7, 2908360), (8, 2544815), (10, 2035852), (13, 1566040), (14, 1454180), (17, 1197560), (20, 1017926), (26, 783020), (28, 727090), (34, 598780), (35, 581672), (40, 508963), (47, 433160), (49, 415480), (52, 391510), (56, 363545), (65, 313208), (68, 299390), (70, 290836), (85, 239512), (91, 223720), (94, 216580), (98, 207740), (104, 195755), (119, 171080), (130, 156604), (136, 149695), (140, 145418), (170, 119756), (182, 111860), (188, 108290), (196, 103870), (221, 92120), (235, 86632), (238, 85540), (245, 83096), (260, 78302), (280, 72709), (329, 61880), (340, 59878), (364, 55930), (376, 54145), (392, 51935), (442, 46060), (455, 44744), (470, 43316), (476, 42770), (490, 41548), (520, 39151), (595, 34216), (611, 33320), (637, 31960), (658, 30940), (680, 29939), (728, 27965), (799, 25480), (833, 24440), (884, 23030), (910, 22372), (940, 21658), (952, 21385), (980, 20774), (1105, 18424), (1190, 17108), (1222, 16660), (1274, 15980), (1316, 15470), (1547, 13160), (1598, 12740), (1645, 12376), (1666, 12220), (1768, 11515), (1820, 11186), (1880, 10829), (1960, 10387), (2210, 9212), (2303, 8840), (2380, 8554), (2444, 8330), (2548, 7990), (2632, 7735), (3055, 6664), (3094, 6580), (3185, 6392), (3196, 6370), (3290, 6188), (3332, 6110), (3640, 5593), (3995, 5096), (4165, 4888), (4277, 4760), (4420, 4606)]