2140760

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{491}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 4870800

約数和(自身を除く): 2730040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 491, 545, 872, 982, 1090, 1964, 2180, 2455, 3928, 4360, 4910, 9820, 19640, 53519, 107038, 214076, 267595, 428152, 535190, 1070380, 2140760]

約数ペア:

[(1, 2140760), (2, 1070380), (4, 535190), (5, 428152), (8, 267595), (10, 214076), (20, 107038), (40, 53519), (109, 19640), (218, 9820), (436, 4910), (491, 4360), (545, 3928), (872, 2455), (982, 2180), (1090, 1964)]