1297225820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{739}}^1$

素因数の和:939

約数の個数: 96

約数和(自身を含む): 3043353600

約数和(自身を除く): 1746127780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 101, 110, 158, 202, 220, 316, 395, 404, 505, 739, 790, 869, 1010, 1111, 1478, 1580, 1738, 2020, 2222, 2956, 3476, 3695, 4345, 4444, 5555, 7390, 7979, 8129, 8690, 11110, 14780, 15958, 16258, 17380, 22220, 31916, 32516, 39895, 40645, 58381, 74639, 79790, 81290, 87769, 116762, 149278, 159580, 162580, 175538, 233524, 291905, 298556, 351076, 373195, 438845, 583810, 642191, 746390, 821029, 877690, 1167620, 1284382, 1492780, 1642058, 1755380, 2568764, 3210955, 3284116, 4105145, 5896481, 6421910, 8210290, 11792962, 12843820, 16420580, 23585924, 29482405, 58964810, 64861291, 117929620, 129722582, 259445164, 324306455, 648612910, 1297225820]

約数ペア:

[(1, 1297225820), (2, 648612910), (4, 324306455), (5, 259445164), (10, 129722582), (11, 117929620), (20, 64861291), (22, 58964810), (44, 29482405), (55, 23585924), (79, 16420580), (101, 12843820), (110, 11792962), (158, 8210290), (202, 6421910), (220, 5896481), (316, 4105145), (395, 3284116), (404, 3210955), (505, 2568764), (739, 1755380), (790, 1642058), (869, 1492780), (1010, 1284382), (1111, 1167620), (1478, 877690), (1580, 821029), (1738, 746390), (2020, 642191), (2222, 583810), (2956, 438845), (3476, 373195), (3695, 351076), (4345, 298556), (4444, 291905), (5555, 233524), (7390, 175538), (7979, 162580), (8129, 159580), (8690, 149278), (11110, 116762), (14780, 87769), (15958, 81290), (16258, 79790), (17380, 74639), (22220, 58381), (31916, 40645), (32516, 39895)]