18716390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:357

約数の個数: 64

約数和(自身を含む): 42577920

約数和(自身を除く): 23861530

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 109, 110, 154, 218, 223, 385, 446, 545, 763, 770, 1090, 1115, 1199, 1526, 1561, 2230, 2398, 2453, 3122, 3815, 4906, 5995, 7630, 7805, 8393, 11990, 12265, 15610, 16786, 17171, 24307, 24530, 34342, 41965, 48614, 83930, 85855, 121535, 170149, 171710, 243070, 267377, 340298, 534754, 850745, 1336885, 1701490, 1871639, 2673770, 3743278, 9358195, 18716390]

約数ペア:

[(1, 18716390), (2, 9358195), (5, 3743278), (7, 2673770), (10, 1871639), (11, 1701490), (14, 1336885), (22, 850745), (35, 534754), (55, 340298), (70, 267377), (77, 243070), (109, 171710), (110, 170149), (154, 121535), (218, 85855), (223, 83930), (385, 48614), (446, 41965), (545, 34342), (763, 24530), (770, 24307), (1090, 17171), (1115, 16786), (1199, 15610), (1526, 12265), (1561, 11990), (2230, 8393), (2398, 7805), (2453, 7630), (3122, 5995), (3815, 4906)]