387625820

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{289273}}^1$

素因数の和:289349

約数の個数: 24

約数和(自身を含む): 826166544

約数和(自身を除く): 438540724

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 289273, 578546, 1157092, 1446365, 2892730, 5785460, 19381291, 38762582, 77525164, 96906455, 193812910, 387625820]

約数ペア:

[(1, 387625820), (2, 193812910), (4, 96906455), (5, 77525164), (10, 38762582), (20, 19381291), (67, 5785460), (134, 2892730), (268, 1446365), (335, 1157092), (670, 578546), (1340, 289273)]