290419640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1037213}}^1$

素因数の和:1037231

約数の個数: 32

約数和(自身を含む): 746794080

約数和(自身を除く): 456374440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1037213, 2074426, 4148852, 5186065, 7260491, 8297704, 10372130, 14520982, 20744260, 29041964, 36302455, 41488520, 58083928, 72604910, 145209820, 290419640]

約数ペア:

[(1, 290419640), (2, 145209820), (4, 72604910), (5, 58083928), (7, 41488520), (8, 36302455), (10, 29041964), (14, 20744260), (20, 14520982), (28, 10372130), (35, 8297704), (40, 7260491), (56, 5186065), (70, 4148852), (140, 2074426), (280, 1037213)]