641750500

素因数分解:

$2^2\times 5^3\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1$

素因数の和:530

約数の個数: 96

約数和(自身を含む): 1455094368

約数和(自身を除く): 813343868

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 61, 100, 106, 122, 125, 212, 244, 250, 265, 305, 397, 500, 530, 610, 794, 1060, 1220, 1325, 1525, 1588, 1985, 2650, 3050, 3233, 3970, 5300, 6100, 6466, 6625, 7625, 7940, 9925, 12932, 13250, 15250, 16165, 19850, 21041, 24217, 26500, 30500, 32330, 39700, 42082, 48434, 49625, 64660, 80825, 84164, 96868, 99250, 105205, 121085, 161650, 198500, 210410, 242170, 323300, 404125, 420820, 484340, 526025, 605425, 808250, 1052050, 1210850, 1283501, 1616500, 2104100, 2421700, 2567002, 2630125, 3027125, 5134004, 5260250, 6054250, 6417505, 10520500, 12108500, 12835010, 25670020, 32087525, 64175050, 128350100, 160437625, 320875250, 641750500]

約数ペア:

[(1, 641750500), (2, 320875250), (4, 160437625), (5, 128350100), (10, 64175050), (20, 32087525), (25, 25670020), (50, 12835010), (53, 12108500), (61, 10520500), (100, 6417505), (106, 6054250), (122, 5260250), (125, 5134004), (212, 3027125), (244, 2630125), (250, 2567002), (265, 2421700), (305, 2104100), (397, 1616500), (500, 1283501), (530, 1210850), (610, 1052050), (794, 808250), (1060, 605425), (1220, 526025), (1325, 484340), (1525, 420820), (1588, 404125), (1985, 323300), (2650, 242170), (3050, 210410), (3233, 198500), (3970, 161650), (5300, 121085), (6100, 105205), (6466, 99250), (6625, 96868), (7625, 84164), (7940, 80825), (9925, 64660), (12932, 49625), (13250, 48434), (15250, 42082), (16165, 39700), (19850, 32330), (21041, 30500), (24217, 26500)]