402008000

素因数分解:

$2^6\times 5^3\times {\mathrm{31}}^1\times {\mathrm{1621}}^1$

素因数の和:1679

約数の個数: 112

約数和(自身を含む): 1028322048

約数和(自身を除く): 626314048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 125, 155, 160, 200, 248, 250, 310, 320, 400, 496, 500, 620, 775, 800, 992, 1000, 1240, 1550, 1600, 1621, 1984, 2000, 2480, 3100, 3242, 3875, 4000, 4960, 6200, 6484, 7750, 8000, 8105, 9920, 12400, 12968, 15500, 16210, 24800, 25936, 31000, 32420, 40525, 49600, 50251, 51872, 62000, 64840, 81050, 100502, 103744, 124000, 129680, 162100, 201004, 202625, 248000, 251255, 259360, 324200, 402008, 405250, 502510, 518720, 648400, 804016, 810500, 1005020, 1256275, 1296800, 1608032, 1621000, 2010040, 2512550, 2593600, 3216064, 3242000, 4020080, 5025100, 6281375, 6484000, 8040160, 10050200, 12562750, 12968000, 16080320, 20100400, 25125500, 40200800, 50251000, 80401600, 100502000, 201004000, 402008000]

約数ペア:

[(1, 402008000), (2, 201004000), (4, 100502000), (5, 80401600), (8, 50251000), (10, 40200800), (16, 25125500), (20, 20100400), (25, 16080320), (31, 12968000), (32, 12562750), (40, 10050200), (50, 8040160), (62, 6484000), (64, 6281375), (80, 5025100), (100, 4020080), (124, 3242000), (125, 3216064), (155, 2593600), (160, 2512550), (200, 2010040), (248, 1621000), (250, 1608032), (310, 1296800), (320, 1256275), (400, 1005020), (496, 810500), (500, 804016), (620, 648400), (775, 518720), (800, 502510), (992, 405250), (1000, 402008), (1240, 324200), (1550, 259360), (1600, 251255), (1621, 248000), (1984, 202625), (2000, 201004), (2480, 162100), (3100, 129680), (3242, 124000), (3875, 103744), (4000, 100502), (4960, 81050), (6200, 64840), (6484, 62000), (7750, 51872), (8000, 50251), (8105, 49600), (9920, 40525), (12400, 32420), (12968, 31000), (15500, 25936), (16210, 24800)]