20187570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1399}}^1$

素因数の和:1459

約数の個数: 64

約数和(自身を含む): 53625600

約数和(自身を除く): 33438030

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 37, 39, 65, 74, 78, 111, 130, 185, 195, 222, 370, 390, 481, 555, 962, 1110, 1399, 1443, 2405, 2798, 2886, 4197, 4810, 6995, 7215, 8394, 13990, 14430, 18187, 20985, 36374, 41970, 51763, 54561, 90935, 103526, 109122, 155289, 181870, 258815, 272805, 310578, 517630, 545610, 672919, 776445, 1345838, 1552890, 2018757, 3364595, 4037514, 6729190, 10093785, 20187570]

約数ペア:

[(1, 20187570), (2, 10093785), (3, 6729190), (5, 4037514), (6, 3364595), (10, 2018757), (13, 1552890), (15, 1345838), (26, 776445), (30, 672919), (37, 545610), (39, 517630), (65, 310578), (74, 272805), (78, 258815), (111, 181870), (130, 155289), (185, 109122), (195, 103526), (222, 90935), (370, 54561), (390, 51763), (481, 41970), (555, 36374), (962, 20985), (1110, 18187), (1399, 14430), (1443, 13990), (2405, 8394), (2798, 7215), (2886, 6995), (4197, 4810)]