64139000

素因数分解:

$2^3\times 5^3\times {\mathrm{31}}^1\times {\mathrm{2069}}^1$

素因数の和:2121

約数の個数: 64

約数和(自身を含む): 155001600

約数和(自身を除く): 90862600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 125, 155, 200, 248, 250, 310, 500, 620, 775, 1000, 1240, 1550, 2069, 3100, 3875, 4138, 6200, 7750, 8276, 10345, 15500, 16552, 20690, 31000, 41380, 51725, 64139, 82760, 103450, 128278, 206900, 256556, 258625, 320695, 413800, 513112, 517250, 641390, 1034500, 1282780, 1603475, 2069000, 2565560, 3206950, 6413900, 8017375, 12827800, 16034750, 32069500, 64139000]

約数ペア:

[(1, 64139000), (2, 32069500), (4, 16034750), (5, 12827800), (8, 8017375), (10, 6413900), (20, 3206950), (25, 2565560), (31, 2069000), (40, 1603475), (50, 1282780), (62, 1034500), (100, 641390), (124, 517250), (125, 513112), (155, 413800), (200, 320695), (248, 258625), (250, 256556), (310, 206900), (500, 128278), (620, 103450), (775, 82760), (1000, 64139), (1240, 51725), (1550, 41380), (2069, 31000), (3100, 20690), (3875, 16552), (4138, 15500), (6200, 10345), (7750, 8276)]