417040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1$

素因数の和:427

約数の個数: 40

約数和(自身を含む): 1046808

約数和(自身を除く): 629768

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 401, 520, 802, 1040, 1604, 2005, 3208, 4010, 5213, 6416, 8020, 10426, 16040, 20852, 26065, 32080, 41704, 52130, 83408, 104260, 208520, 417040]

約数ペア:

[(1, 417040), (2, 208520), (4, 104260), (5, 83408), (8, 52130), (10, 41704), (13, 32080), (16, 26065), (20, 20852), (26, 16040), (40, 10426), (52, 8020), (65, 6416), (80, 5213), (104, 4010), (130, 3208), (208, 2005), (260, 1604), (401, 1040), (520, 802)]