8021269420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1\times {\mathrm{18839}}^1$

素因数の和:19258

約数の個数: 48

約数和(自身を含む): 17170776000

約数和(自身を除く): 9149506580

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 349, 610, 698, 1220, 1396, 1745, 3490, 6980, 18839, 21289, 37678, 42578, 75356, 85156, 94195, 106445, 188390, 212890, 376780, 425780, 1149179, 2298358, 4596716, 5745895, 6574811, 11491790, 13149622, 22983580, 26299244, 32874055, 65748110, 131496220, 401063471, 802126942, 1604253884, 2005317355, 4010634710, 8021269420]

約数ペア:

[(1, 8021269420), (2, 4010634710), (4, 2005317355), (5, 1604253884), (10, 802126942), (20, 401063471), (61, 131496220), (122, 65748110), (244, 32874055), (305, 26299244), (349, 22983580), (610, 13149622), (698, 11491790), (1220, 6574811), (1396, 5745895), (1745, 4596716), (3490, 2298358), (6980, 1149179), (18839, 425780), (21289, 376780), (37678, 212890), (42578, 188390), (75356, 106445), (85156, 94195)]