15705990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{47}}^2\times {\mathrm{79}}^1$

素因数の和:186

約数の個数: 72

約数和(自身を含む): 42251040

約数和(自身を除く): 26545050

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 47, 79, 90, 94, 141, 158, 235, 237, 282, 395, 423, 470, 474, 705, 711, 790, 846, 1185, 1410, 1422, 2115, 2209, 2370, 3555, 3713, 4230, 4418, 6627, 7110, 7426, 11045, 11139, 13254, 18565, 19881, 22090, 22278, 33135, 33417, 37130, 39762, 55695, 66270, 66834, 99405, 111390, 167085, 174511, 198810, 334170, 349022, 523533, 872555, 1047066, 1570599, 1745110, 2617665, 3141198, 5235330, 7852995, 15705990]

約数ペア:

[(1, 15705990), (2, 7852995), (3, 5235330), (5, 3141198), (6, 2617665), (9, 1745110), (10, 1570599), (15, 1047066), (18, 872555), (30, 523533), (45, 349022), (47, 334170), (79, 198810), (90, 174511), (94, 167085), (141, 111390), (158, 99405), (235, 66834), (237, 66270), (282, 55695), (395, 39762), (423, 37130), (470, 33417), (474, 33135), (705, 22278), (711, 22090), (790, 19881), (846, 18565), (1185, 13254), (1410, 11139), (1422, 11045), (2115, 7426), (2209, 7110), (2370, 6627), (3555, 4418), (3713, 4230)]