31313940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{10651}}^1$

素因数の和:10677

約数の個数: 72

約数和(自身を含む): 102003552

約数和(自身を除く): 70689612

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 10651, 21302, 31953, 42604, 53255, 63906, 74557, 106510, 127812, 149114, 159765, 213020, 223671, 298228, 319530, 372785, 447342, 521899, 639060, 745570, 894684, 1043798, 1118355, 1491140, 1565697, 2087596, 2236710, 2609495, 3131394, 4473420, 5218990, 6262788, 7828485, 10437980, 15656970, 31313940]

約数ペア:

[(1, 31313940), (2, 15656970), (3, 10437980), (4, 7828485), (5, 6262788), (6, 5218990), (7, 4473420), (10, 3131394), (12, 2609495), (14, 2236710), (15, 2087596), (20, 1565697), (21, 1491140), (28, 1118355), (30, 1043798), (35, 894684), (42, 745570), (49, 639060), (60, 521899), (70, 447342), (84, 372785), (98, 319530), (105, 298228), (140, 223671), (147, 213020), (196, 159765), (210, 149114), (245, 127812), (294, 106510), (420, 74557), (490, 63906), (588, 53255), (735, 42604), (980, 31953), (1470, 21302), (2940, 10651)]