64556570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 131410944

約数和(自身を除く): 66854374

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 83, 130, 155, 166, 193, 310, 386, 403, 415, 806, 830, 965, 1079, 1930, 2015, 2158, 2509, 2573, 4030, 5018, 5146, 5395, 5983, 10790, 11966, 12545, 12865, 16019, 25090, 25730, 29915, 32038, 33449, 59830, 66898, 77779, 80095, 155558, 160190, 167245, 208247, 334490, 388895, 416494, 496589, 777790, 993178, 1041235, 2082470, 2482945, 4965890, 6455657, 12911314, 32278285, 64556570]

約数ペア:

[(1, 64556570), (2, 32278285), (5, 12911314), (10, 6455657), (13, 4965890), (26, 2482945), (31, 2082470), (62, 1041235), (65, 993178), (83, 777790), (130, 496589), (155, 416494), (166, 388895), (193, 334490), (310, 208247), (386, 167245), (403, 160190), (415, 155558), (806, 80095), (830, 77779), (965, 66898), (1079, 59830), (1930, 33449), (2015, 32038), (2158, 29915), (2509, 25730), (2573, 25090), (4030, 16019), (5018, 12865), (5146, 12545), (5395, 11966), (5983, 10790)]