408975760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{269063}}^1$

素因数の和:269095

約数の個数: 40

約数和(自身を含む): 1000918080

約数和(自身を除く): 591942320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 269063, 538126, 1076252, 1345315, 2152504, 2690630, 4305008, 5112197, 5381260, 10224394, 10762520, 20448788, 21525040, 25560985, 40897576, 51121970, 81795152, 102243940, 204487880, 408975760]

約数ペア:

[(1, 408975760), (2, 204487880), (4, 102243940), (5, 81795152), (8, 51121970), (10, 40897576), (16, 25560985), (19, 21525040), (20, 20448788), (38, 10762520), (40, 10224394), (76, 5381260), (80, 5112197), (95, 4305008), (152, 2690630), (190, 2152504), (304, 1345315), (380, 1076252), (760, 538126), (1520, 269063)]