20724553600

素因数分解:

$2^7\times 5^2\times {\mathrm{101}}^1\times {\mathrm{64123}}^1$

素因数の和:64248

約数の個数: 96

約数和(自身を含む): 51703822440

約数和(自身を除く): 30979268840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 101, 128, 160, 200, 202, 320, 400, 404, 505, 640, 800, 808, 1010, 1600, 1616, 2020, 2525, 3200, 3232, 4040, 5050, 6464, 8080, 10100, 12928, 16160, 20200, 32320, 40400, 64123, 64640, 80800, 128246, 161600, 256492, 320615, 323200, 512984, 641230, 1025968, 1282460, 1603075, 2051936, 2564920, 3206150, 4103872, 5129840, 6412300, 6476423, 8207744, 10259680, 12824600, 12952846, 20519360, 25649200, 25905692, 32382115, 41038720, 51298400, 51811384, 64764230, 102596800, 103622768, 129528460, 161910575, 205193600, 207245536, 259056920, 323821150, 414491072, 518113840, 647642300, 828982144, 1036227680, 1295284600, 2072455360, 2590569200, 4144910720, 5181138400, 10362276800, 20724553600]

約数ペア:

[(1, 20724553600), (2, 10362276800), (4, 5181138400), (5, 4144910720), (8, 2590569200), (10, 2072455360), (16, 1295284600), (20, 1036227680), (25, 828982144), (32, 647642300), (40, 518113840), (50, 414491072), (64, 323821150), (80, 259056920), (100, 207245536), (101, 205193600), (128, 161910575), (160, 129528460), (200, 103622768), (202, 102596800), (320, 64764230), (400, 51811384), (404, 51298400), (505, 41038720), (640, 32382115), (800, 25905692), (808, 25649200), (1010, 20519360), (1600, 12952846), (1616, 12824600), (2020, 10259680), (2525, 8207744), (3200, 6476423), (3232, 6412300), (4040, 5129840), (5050, 4103872), (6464, 3206150), (8080, 2564920), (10100, 2051936), (12928, 1603075), (16160, 1282460), (20200, 1025968), (32320, 641230), (40400, 512984), (64123, 323200), (64640, 320615), (80800, 256492), (128246, 161600)]