38720720

素因数分解:

$2^4\times 5^1\times {\mathrm{521}}^1\times {\mathrm{929}}^1$

素因数の和:1463

約数の個数: 40

約数和(自身を含む): 90295560

約数和(自身を除く): 51574840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 521, 929, 1042, 1858, 2084, 2605, 3716, 4168, 4645, 5210, 7432, 8336, 9290, 10420, 14864, 18580, 20840, 37160, 41680, 74320, 484009, 968018, 1936036, 2420045, 3872072, 4840090, 7744144, 9680180, 19360360, 38720720]

約数ペア:

[(1, 38720720), (2, 19360360), (4, 9680180), (5, 7744144), (8, 4840090), (10, 3872072), (16, 2420045), (20, 1936036), (40, 968018), (80, 484009), (521, 74320), (929, 41680), (1042, 37160), (1858, 20840), (2084, 18580), (2605, 14864), (3716, 10420), (4168, 9290), (4645, 8336), (5210, 7432)]