31985960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{13109}}^1$

素因数の和:13181

約数の個数: 32

約数和(自身を含む): 73153800

約数和(自身を除く): 41167840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 13109, 26218, 52436, 65545, 104872, 131090, 262180, 524360, 799649, 1599298, 3198596, 3998245, 6397192, 7996490, 15992980, 31985960]

約数ペア:

[(1, 31985960), (2, 15992980), (4, 7996490), (5, 6397192), (8, 3998245), (10, 3198596), (20, 1599298), (40, 799649), (61, 524360), (122, 262180), (244, 131090), (305, 104872), (488, 65545), (610, 52436), (1220, 26218), (2440, 13109)]