420296740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{503}}^1\times {\mathrm{1019}}^1$

素因数の和:1572

約数の個数: 48

約数和(自身を含む): 906837120

約数和(自身を除く): 486540380

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 503, 820, 1006, 1019, 2012, 2038, 2515, 4076, 5030, 5095, 10060, 10190, 20380, 20623, 41246, 41779, 82492, 83558, 103115, 167116, 206230, 208895, 412460, 417790, 512557, 835580, 1025114, 2050228, 2562785, 5125570, 10251140, 21014837, 42029674, 84059348, 105074185, 210148370, 420296740]

約数ペア:

[(1, 420296740), (2, 210148370), (4, 105074185), (5, 84059348), (10, 42029674), (20, 21014837), (41, 10251140), (82, 5125570), (164, 2562785), (205, 2050228), (410, 1025114), (503, 835580), (820, 512557), (1006, 417790), (1019, 412460), (2012, 208895), (2038, 206230), (2515, 167116), (4076, 103115), (5030, 83558), (5095, 82492), (10060, 41779), (10190, 41246), (20380, 20623)]