15815828

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 35239680

約数和(自身を除く): 19423852

約数列:

[1, 2, 4, 7, 14, 19, 28, 31, 38, 49, 62, 76, 98, 124, 133, 137, 196, 217, 266, 274, 434, 532, 548, 589, 868, 931, 959, 1178, 1519, 1862, 1918, 2356, 2603, 3038, 3724, 3836, 4123, 4247, 5206, 6076, 6713, 8246, 8494, 10412, 13426, 16492, 16988, 18221, 26852, 28861, 29729, 36442, 57722, 59458, 72884, 80693, 115444, 118916, 127547, 161386, 208103, 255094, 322772, 416206, 510188, 564851, 832412, 1129702, 2259404, 3953957, 7907914, 15815828]

約数ペア:

[(1, 15815828), (2, 7907914), (4, 3953957), (7, 2259404), (14, 1129702), (19, 832412), (28, 564851), (31, 510188), (38, 416206), (49, 322772), (62, 255094), (76, 208103), (98, 161386), (124, 127547), (133, 118916), (137, 115444), (196, 80693), (217, 72884), (266, 59458), (274, 57722), (434, 36442), (532, 29729), (548, 28861), (589, 26852), (868, 18221), (931, 16988), (959, 16492), (1178, 13426), (1519, 10412), (1862, 8494), (1918, 8246), (2356, 6713), (2603, 6076), (3038, 5206), (3724, 4247), (3836, 4123)]