2891960

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{367}}^1$

素因数の和:575

約数の個数: 32

約数和(自身を含む): 6557760

約数和(自身を除く): 3665800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 367, 394, 734, 788, 985, 1468, 1576, 1835, 1970, 2936, 3670, 3940, 7340, 7880, 14680, 72299, 144598, 289196, 361495, 578392, 722990, 1445980, 2891960]

約数ペア:

[(1, 2891960), (2, 1445980), (4, 722990), (5, 578392), (8, 361495), (10, 289196), (20, 144598), (40, 72299), (197, 14680), (367, 7880), (394, 7340), (734, 3940), (788, 3670), (985, 2936), (1468, 1970), (1576, 1835)]