31064280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19913}}^1$

素因数の和:19940

約数の個数: 64

約数和(自身を含む): 100366560

約数和(自身を除く): 69302280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 19913, 39826, 59739, 79652, 99565, 119478, 159304, 199130, 238956, 258869, 298695, 398260, 477912, 517738, 597390, 776607, 796520, 1035476, 1194780, 1294345, 1553214, 2070952, 2389560, 2588690, 3106428, 3883035, 5177380, 6212856, 7766070, 10354760, 15532140, 31064280]

約数ペア:

[(1, 31064280), (2, 15532140), (3, 10354760), (4, 7766070), (5, 6212856), (6, 5177380), (8, 3883035), (10, 3106428), (12, 2588690), (13, 2389560), (15, 2070952), (20, 1553214), (24, 1294345), (26, 1194780), (30, 1035476), (39, 796520), (40, 776607), (52, 597390), (60, 517738), (65, 477912), (78, 398260), (104, 298695), (120, 258869), (130, 238956), (156, 199130), (195, 159304), (260, 119478), (312, 99565), (390, 79652), (520, 59739), (780, 39826), (1560, 19913)]