64408040

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{5813}}^1$

素因数の和:6101

約数の個数: 32

約数和(自身を含む): 145466280

約数和(自身を除く): 81058240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 2216, 2770, 5540, 5813, 11080, 11626, 23252, 29065, 46504, 58130, 116260, 232520, 1610201, 3220402, 6440804, 8051005, 12881608, 16102010, 32204020, 64408040]

約数ペア:

[(1, 64408040), (2, 32204020), (4, 16102010), (5, 12881608), (8, 8051005), (10, 6440804), (20, 3220402), (40, 1610201), (277, 232520), (554, 116260), (1108, 58130), (1385, 46504), (2216, 29065), (2770, 23252), (5540, 11626), (5813, 11080)]