2889888980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{62851}}^1$

素因数の和:62901

約数の個数: 72

約数和(自身を含む): 7021825440

約数和(自身を除く): 4131936460

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 209, 220, 242, 380, 418, 484, 605, 836, 1045, 1210, 2090, 2299, 2420, 4180, 4598, 9196, 11495, 22990, 45980, 62851, 125702, 251404, 314255, 628510, 691361, 1194169, 1257020, 1382722, 2388338, 2765444, 3456805, 4776676, 5970845, 6913610, 7604971, 11941690, 13135859, 13827220, 15209942, 23883380, 26271718, 30419884, 38024855, 52543436, 65679295, 76049710, 131358590, 144494449, 152099420, 262717180, 288988898, 577977796, 722472245, 1444944490, 2889888980]

約数ペア:

[(1, 2889888980), (2, 1444944490), (4, 722472245), (5, 577977796), (10, 288988898), (11, 262717180), (19, 152099420), (20, 144494449), (22, 131358590), (38, 76049710), (44, 65679295), (55, 52543436), (76, 38024855), (95, 30419884), (110, 26271718), (121, 23883380), (190, 15209942), (209, 13827220), (220, 13135859), (242, 11941690), (380, 7604971), (418, 6913610), (484, 5970845), (605, 4776676), (836, 3456805), (1045, 2765444), (1210, 2388338), (2090, 1382722), (2299, 1257020), (2420, 1194169), (4180, 691361), (4598, 628510), (9196, 314255), (11495, 251404), (22990, 125702), (45980, 62851)]