143721680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61949}}^1$

素因数の和:61991

約数の個数: 40

約数和(自身を含む): 345681000

約数和(自身を除く): 201959320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 61949, 123898, 247796, 309745, 495592, 619490, 991184, 1238980, 1796521, 2477960, 3593042, 4955920, 7186084, 8982605, 14372168, 17965210, 28744336, 35930420, 71860840, 143721680]

約数ペア:

[(1, 143721680), (2, 71860840), (4, 35930420), (5, 28744336), (8, 17965210), (10, 14372168), (16, 8982605), (20, 7186084), (29, 4955920), (40, 3593042), (58, 2477960), (80, 1796521), (116, 1238980), (145, 991184), (232, 619490), (290, 495592), (464, 309745), (580, 247796), (1160, 123898), (2320, 61949)]