84789980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{8963}}^1$

素因数の和:9026

約数の個数: 48

約数和(自身を含む): 198785664

約数和(自身を除く): 113995684

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 8963, 9460, 17926, 35852, 44815, 89630, 98593, 179260, 197186, 385409, 394372, 492965, 770818, 985930, 1541636, 1927045, 1971860, 3854090, 4239499, 7708180, 8478998, 16957996, 21197495, 42394990, 84789980]

約数ペア:

[(1, 84789980), (2, 42394990), (4, 21197495), (5, 16957996), (10, 8478998), (11, 7708180), (20, 4239499), (22, 3854090), (43, 1971860), (44, 1927045), (55, 1541636), (86, 985930), (110, 770818), (172, 492965), (215, 394372), (220, 385409), (430, 197186), (473, 179260), (860, 98593), (946, 89630), (1892, 44815), (2365, 35852), (4730, 17926), (8963, 9460)]