689355680

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10691}}^1$

素因数の和:10750

約数の個数: 96

約数和(自身を含む): 1810626048

約数和(自身を除く): 1121270368

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 403, 416, 496, 520, 620, 806, 992, 1040, 1240, 1612, 2015, 2080, 2480, 3224, 4030, 4960, 6448, 8060, 10691, 12896, 16120, 21382, 32240, 42764, 53455, 64480, 85528, 106910, 138983, 171056, 213820, 277966, 331421, 342112, 427640, 555932, 662842, 694915, 855280, 1111864, 1325684, 1389830, 1657105, 1710560, 2223728, 2651368, 2779660, 3314210, 4308473, 4447456, 5302736, 5559320, 6628420, 8616946, 10605472, 11118640, 13256840, 17233892, 21542365, 22237280, 26513680, 34467784, 43084730, 53027360, 68935568, 86169460, 137871136, 172338920, 344677840, 689355680]

約数ペア:

[(1, 689355680), (2, 344677840), (4, 172338920), (5, 137871136), (8, 86169460), (10, 68935568), (13, 53027360), (16, 43084730), (20, 34467784), (26, 26513680), (31, 22237280), (32, 21542365), (40, 17233892), (52, 13256840), (62, 11118640), (65, 10605472), (80, 8616946), (104, 6628420), (124, 5559320), (130, 5302736), (155, 4447456), (160, 4308473), (208, 3314210), (248, 2779660), (260, 2651368), (310, 2223728), (403, 1710560), (416, 1657105), (496, 1389830), (520, 1325684), (620, 1111864), (806, 855280), (992, 694915), (1040, 662842), (1240, 555932), (1612, 427640), (2015, 342112), (2080, 331421), (2480, 277966), (3224, 213820), (4030, 171056), (4960, 138983), (6448, 106910), (8060, 85528), (10691, 64480), (12896, 53455), (16120, 42764), (21382, 32240)]