199089980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{7177}}^1$

素因数の和:7278

約数の個数: 48

約数和(自身を含む): 446184480

約数和(自身を除く): 247094500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 95, 146, 190, 292, 365, 380, 730, 1387, 1460, 2774, 5548, 6935, 7177, 13870, 14354, 27740, 28708, 35885, 71770, 136363, 143540, 272726, 523921, 545452, 681815, 1047842, 1363630, 2095684, 2619605, 2727260, 5239210, 9954499, 10478420, 19908998, 39817996, 49772495, 99544990, 199089980]

約数ペア:

[(1, 199089980), (2, 99544990), (4, 49772495), (5, 39817996), (10, 19908998), (19, 10478420), (20, 9954499), (38, 5239210), (73, 2727260), (76, 2619605), (95, 2095684), (146, 1363630), (190, 1047842), (292, 681815), (365, 545452), (380, 523921), (730, 272726), (1387, 143540), (1460, 136363), (2774, 71770), (5548, 35885), (6935, 28708), (7177, 27740), (13870, 14354)]