18639010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:343

約数の個数: 48

約数和(自身を含む): 37353960

約数和(自身を除く): 18714950

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 169, 205, 269, 338, 410, 533, 538, 845, 1066, 1345, 1690, 2665, 2690, 3497, 5330, 6929, 6994, 11029, 13858, 17485, 22058, 34645, 34970, 45461, 55145, 69290, 90922, 110290, 143377, 227305, 286754, 454610, 716885, 1433770, 1863901, 3727802, 9319505, 18639010]

約数ペア:

[(1, 18639010), (2, 9319505), (5, 3727802), (10, 1863901), (13, 1433770), (26, 716885), (41, 454610), (65, 286754), (82, 227305), (130, 143377), (169, 110290), (205, 90922), (269, 69290), (338, 55145), (410, 45461), (533, 34970), (538, 34645), (845, 22058), (1066, 17485), (1345, 13858), (1690, 11029), (2665, 6994), (2690, 6929), (3497, 5330)]