63965320

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 148055040

約数和(自身を除く): 84089720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 101, 142, 202, 223, 284, 355, 404, 446, 505, 568, 710, 808, 892, 1010, 1115, 1420, 1784, 2020, 2230, 2840, 4040, 4460, 7171, 8920, 14342, 15833, 22523, 28684, 31666, 35855, 45046, 57368, 63332, 71710, 79165, 90092, 112615, 126664, 143420, 158330, 180184, 225230, 286840, 316660, 450460, 633320, 900920, 1599133, 3198266, 6396532, 7995665, 12793064, 15991330, 31982660, 63965320]

約数ペア:

[(1, 63965320), (2, 31982660), (4, 15991330), (5, 12793064), (8, 7995665), (10, 6396532), (20, 3198266), (40, 1599133), (71, 900920), (101, 633320), (142, 450460), (202, 316660), (223, 286840), (284, 225230), (355, 180184), (404, 158330), (446, 143420), (505, 126664), (568, 112615), (710, 90092), (808, 79165), (892, 71710), (1010, 63332), (1115, 57368), (1420, 45046), (1784, 35855), (2020, 31666), (2230, 28684), (2840, 22523), (4040, 15833), (4460, 14342), (7171, 8920)]