15879860

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 34618752

約数和(自身を除く): 18738892

約数列:

[1, 2, 4, 5, 10, 20, 53, 71, 106, 142, 211, 212, 265, 284, 355, 422, 530, 710, 844, 1055, 1060, 1420, 2110, 3763, 4220, 7526, 11183, 14981, 15052, 18815, 22366, 29962, 37630, 44732, 55915, 59924, 74905, 75260, 111830, 149810, 223660, 299620, 793993, 1587986, 3175972, 3969965, 7939930, 15879860]

約数ペア:

[(1, 15879860), (2, 7939930), (4, 3969965), (5, 3175972), (10, 1587986), (20, 793993), (53, 299620), (71, 223660), (106, 149810), (142, 111830), (211, 75260), (212, 74905), (265, 59924), (284, 55915), (355, 44732), (422, 37630), (530, 29962), (710, 22366), (844, 18815), (1055, 15052), (1060, 14981), (1420, 11183), (2110, 7526), (3763, 4220)]