401040800

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:311

約数の個数: 144

約数和(自身を含む): 1026934272

約数和(自身を除く): 625893472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 103, 124, 155, 157, 160, 200, 206, 248, 310, 314, 400, 412, 496, 515, 620, 628, 775, 785, 800, 824, 992, 1030, 1240, 1256, 1550, 1570, 1648, 2060, 2480, 2512, 2575, 3100, 3140, 3193, 3296, 3925, 4120, 4867, 4960, 5024, 5150, 6200, 6280, 6386, 7850, 8240, 9734, 10300, 12400, 12560, 12772, 15700, 15965, 16171, 16480, 19468, 20600, 24335, 24800, 25120, 25544, 31400, 31930, 32342, 38936, 41200, 48670, 51088, 62800, 63860, 64684, 77872, 79825, 80855, 82400, 97340, 102176, 121675, 125600, 127720, 129368, 155744, 159650, 161710, 194680, 243350, 255440, 258736, 319300, 323420, 389360, 404275, 486700, 501301, 510880, 517472, 638600, 646840, 778720, 808550, 973400, 1002602, 1277200, 1293680, 1617100, 1946800, 2005204, 2506505, 2554400, 2587360, 3234200, 3893600, 4010408, 5013010, 6468400, 8020816, 10026020, 12532525, 12936800, 16041632, 20052040, 25065050, 40104080, 50130100, 80208160, 100260200, 200520400, 401040800]

約数ペア:

[(1, 401040800), (2, 200520400), (4, 100260200), (5, 80208160), (8, 50130100), (10, 40104080), (16, 25065050), (20, 20052040), (25, 16041632), (31, 12936800), (32, 12532525), (40, 10026020), (50, 8020816), (62, 6468400), (80, 5013010), (100, 4010408), (103, 3893600), (124, 3234200), (155, 2587360), (157, 2554400), (160, 2506505), (200, 2005204), (206, 1946800), (248, 1617100), (310, 1293680), (314, 1277200), (400, 1002602), (412, 973400), (496, 808550), (515, 778720), (620, 646840), (628, 638600), (775, 517472), (785, 510880), (800, 501301), (824, 486700), (992, 404275), (1030, 389360), (1240, 323420), (1256, 319300), (1550, 258736), (1570, 255440), (1648, 243350), (2060, 194680), (2480, 161710), (2512, 159650), (2575, 155744), (3100, 129368), (3140, 127720), (3193, 125600), (3296, 121675), (3925, 102176), (4120, 97340), (4867, 82400), (4960, 80855), (5024, 79825), (5150, 77872), (6200, 64684), (6280, 63860), (6386, 62800), (7850, 51088), (8240, 48670), (9734, 41200), (10300, 38936), (12400, 32342), (12560, 31930), (12772, 31400), (15700, 25544), (15965, 25120), (16171, 24800), (16480, 24335), (19468, 20600)]