18628940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{293}}^1$

素因数の和:347

約数の個数: 72

約数和(自身を含む): 45490032

約数和(自身を除く): 26861092

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 289, 293, 340, 374, 578, 586, 748, 935, 1156, 1172, 1445, 1465, 1870, 2890, 2930, 3179, 3223, 3740, 4981, 5780, 5860, 6358, 6446, 9962, 12716, 12892, 15895, 16115, 19924, 24905, 31790, 32230, 49810, 54791, 63580, 64460, 84677, 99620, 109582, 169354, 219164, 273955, 338708, 423385, 547910, 846770, 931447, 1095820, 1693540, 1862894, 3725788, 4657235, 9314470, 18628940]

約数ペア:

[(1, 18628940), (2, 9314470), (4, 4657235), (5, 3725788), (10, 1862894), (11, 1693540), (17, 1095820), (20, 931447), (22, 846770), (34, 547910), (44, 423385), (55, 338708), (68, 273955), (85, 219164), (110, 169354), (170, 109582), (187, 99620), (220, 84677), (289, 64460), (293, 63580), (340, 54791), (374, 49810), (578, 32230), (586, 31790), (748, 24905), (935, 19924), (1156, 16115), (1172, 15895), (1445, 12892), (1465, 12716), (1870, 9962), (2890, 6446), (2930, 6358), (3179, 5860), (3223, 5780), (3740, 4981)]