20832110

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 42747264

約数和(自身を除く): 21915154

約数列:

[1, 2, 5, 10, 13, 26, 37, 61, 65, 71, 74, 122, 130, 142, 185, 305, 355, 370, 481, 610, 710, 793, 923, 962, 1586, 1846, 2257, 2405, 2627, 3965, 4331, 4514, 4615, 4810, 5254, 7930, 8662, 9230, 11285, 13135, 21655, 22570, 26270, 29341, 34151, 43310, 56303, 58682, 68302, 112606, 146705, 160247, 170755, 281515, 293410, 320494, 341510, 563030, 801235, 1602470, 2083211, 4166422, 10416055, 20832110]

約数ペア:

[(1, 20832110), (2, 10416055), (5, 4166422), (10, 2083211), (13, 1602470), (26, 801235), (37, 563030), (61, 341510), (65, 320494), (71, 293410), (74, 281515), (122, 170755), (130, 160247), (142, 146705), (185, 112606), (305, 68302), (355, 58682), (370, 56303), (481, 43310), (610, 34151), (710, 29341), (793, 26270), (923, 22570), (962, 21655), (1586, 13135), (1846, 11285), (2257, 9230), (2405, 8662), (2627, 7930), (3965, 5254), (4331, 4810), (4514, 4615)]