78710860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1607}}^1$

素因数の和:1726

約数の個数: 48

約数和(自身を含む): 172892160

約数和(自身を除く): 94181300

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 310, 316, 395, 620, 790, 1580, 1607, 2449, 3214, 4898, 6428, 8035, 9796, 12245, 16070, 24490, 32140, 48980, 49817, 99634, 126953, 199268, 249085, 253906, 498170, 507812, 634765, 996340, 1269530, 2539060, 3935543, 7871086, 15742172, 19677715, 39355430, 78710860]

約数ペア:

[(1, 78710860), (2, 39355430), (4, 19677715), (5, 15742172), (10, 7871086), (20, 3935543), (31, 2539060), (62, 1269530), (79, 996340), (124, 634765), (155, 507812), (158, 498170), (310, 253906), (316, 249085), (395, 199268), (620, 126953), (790, 99634), (1580, 49817), (1607, 48980), (2449, 32140), (3214, 24490), (4898, 16070), (6428, 12245), (8035, 9796)]