20965590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:294

約数の個数: 96

約数和(自身を含む): 58833216

約数和(自身を除く): 37867626

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 71, 85, 90, 102, 142, 153, 170, 193, 213, 255, 306, 355, 386, 426, 510, 579, 639, 710, 765, 965, 1065, 1158, 1207, 1278, 1530, 1737, 1930, 2130, 2414, 2895, 3195, 3281, 3474, 3621, 5790, 6035, 6390, 6562, 7242, 8685, 9843, 10863, 12070, 13703, 16405, 17370, 18105, 19686, 21726, 27406, 29529, 32810, 36210, 41109, 49215, 54315, 59058, 68515, 82218, 98430, 108630, 123327, 137030, 147645, 205545, 232951, 246654, 295290, 411090, 465902, 616635, 698853, 1164755, 1233270, 1397706, 2096559, 2329510, 3494265, 4193118, 6988530, 10482795, 20965590]

約数ペア:

[(1, 20965590), (2, 10482795), (3, 6988530), (5, 4193118), (6, 3494265), (9, 2329510), (10, 2096559), (15, 1397706), (17, 1233270), (18, 1164755), (30, 698853), (34, 616635), (45, 465902), (51, 411090), (71, 295290), (85, 246654), (90, 232951), (102, 205545), (142, 147645), (153, 137030), (170, 123327), (193, 108630), (213, 98430), (255, 82218), (306, 68515), (355, 59058), (386, 54315), (426, 49215), (510, 41109), (579, 36210), (639, 32810), (710, 29529), (765, 27406), (965, 21726), (1065, 19686), (1158, 18105), (1207, 17370), (1278, 16405), (1530, 13703), (1737, 12070), (1930, 10863), (2130, 9843), (2414, 8685), (2895, 7242), (3195, 6562), (3281, 6390), (3474, 6035), (3621, 5790)]