1921480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{397}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 4764060

約数和(自身を除く): 2842580

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 397, 440, 484, 605, 794, 968, 1210, 1588, 1985, 2420, 3176, 3970, 4367, 4840, 7940, 8734, 15880, 17468, 21835, 34936, 43670, 48037, 87340, 96074, 174680, 192148, 240185, 384296, 480370, 960740, 1921480]

約数ペア:

[(1, 1921480), (2, 960740), (4, 480370), (5, 384296), (8, 240185), (10, 192148), (11, 174680), (20, 96074), (22, 87340), (40, 48037), (44, 43670), (55, 34936), (88, 21835), (110, 17468), (121, 15880), (220, 8734), (242, 7940), (397, 4840), (440, 4367), (484, 3970), (605, 3176), (794, 2420), (968, 1985), (1210, 1588)]