80401600

素因数分解:

$2^6\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1621}}^1$

素因数の和:1674

約数の個数: 84

約数和(自身を含む): 204346048

約数和(自身を除く): 123944448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 155, 160, 200, 248, 310, 320, 400, 496, 620, 775, 800, 992, 1240, 1550, 1600, 1621, 1984, 2480, 3100, 3242, 4960, 6200, 6484, 8105, 9920, 12400, 12968, 16210, 24800, 25936, 32420, 40525, 49600, 50251, 51872, 64840, 81050, 100502, 103744, 129680, 162100, 201004, 251255, 259360, 324200, 402008, 502510, 518720, 648400, 804016, 1005020, 1256275, 1296800, 1608032, 2010040, 2512550, 2593600, 3216064, 4020080, 5025100, 8040160, 10050200, 16080320, 20100400, 40200800, 80401600]

約数ペア:

[(1, 80401600), (2, 40200800), (4, 20100400), (5, 16080320), (8, 10050200), (10, 8040160), (16, 5025100), (20, 4020080), (25, 3216064), (31, 2593600), (32, 2512550), (40, 2010040), (50, 1608032), (62, 1296800), (64, 1256275), (80, 1005020), (100, 804016), (124, 648400), (155, 518720), (160, 502510), (200, 402008), (248, 324200), (310, 259360), (320, 251255), (400, 201004), (496, 162100), (620, 129680), (775, 103744), (800, 100502), (992, 81050), (1240, 64840), (1550, 51872), (1600, 50251), (1621, 49600), (1984, 40525), (2480, 32420), (3100, 25936), (3242, 24800), (4960, 16210), (6200, 12968), (6484, 12400), (8105, 9920)]