15871960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{233}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 38918880

約数和(自身を除く): 23046920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 131, 233, 260, 262, 466, 520, 524, 655, 932, 1048, 1165, 1310, 1703, 1864, 2330, 2620, 3029, 3406, 4660, 5240, 6058, 6812, 8515, 9320, 12116, 13624, 15145, 17030, 24232, 30290, 30523, 34060, 60580, 61046, 68120, 121160, 122092, 152615, 244184, 305230, 396799, 610460, 793598, 1220920, 1587196, 1983995, 3174392, 3967990, 7935980, 15871960]

約数ペア:

[(1, 15871960), (2, 7935980), (4, 3967990), (5, 3174392), (8, 1983995), (10, 1587196), (13, 1220920), (20, 793598), (26, 610460), (40, 396799), (52, 305230), (65, 244184), (104, 152615), (130, 122092), (131, 121160), (233, 68120), (260, 61046), (262, 60580), (466, 34060), (520, 30523), (524, 30290), (655, 24232), (932, 17030), (1048, 15145), (1165, 13624), (1310, 12116), (1703, 9320), (1864, 8515), (2330, 6812), (2620, 6058), (3029, 5240), (3406, 4660)]