131775920

素因数分解:

$2^4\times 5^1\times {\mathrm{499}}^1\times {\mathrm{3301}}^1$

素因数の和:3813

約数の個数: 40

約数和(自身を含む): 307086000

約数和(自身を除く): 175310080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 499, 998, 1996, 2495, 3301, 3992, 4990, 6602, 7984, 9980, 13204, 16505, 19960, 26408, 33010, 39920, 52816, 66020, 132040, 264080, 1647199, 3294398, 6588796, 8235995, 13177592, 16471990, 26355184, 32943980, 65887960, 131775920]

約数ペア:

[(1, 131775920), (2, 65887960), (4, 32943980), (5, 26355184), (8, 16471990), (10, 13177592), (16, 8235995), (20, 6588796), (40, 3294398), (80, 1647199), (499, 264080), (998, 132040), (1996, 66020), (2495, 52816), (3301, 39920), (3992, 33010), (4990, 26408), (6602, 19960), (7984, 16505), (9980, 13204)]