78680728

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{743}}^1$

素因数の和:848

約数の個数: 64

約数和(自身を含む): 177131520

約数和(自身を除く): 98450792

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 61, 62, 122, 124, 217, 244, 248, 427, 434, 488, 743, 854, 868, 1486, 1708, 1736, 1891, 2972, 3416, 3782, 5201, 5944, 7564, 10402, 13237, 15128, 20804, 23033, 26474, 41608, 45323, 46066, 52948, 90646, 92132, 105896, 161231, 181292, 184264, 317261, 322462, 362584, 634522, 644924, 1269044, 1289848, 1405013, 2538088, 2810026, 5620052, 9835091, 11240104, 19670182, 39340364, 78680728]

約数ペア:

[(1, 78680728), (2, 39340364), (4, 19670182), (7, 11240104), (8, 9835091), (14, 5620052), (28, 2810026), (31, 2538088), (56, 1405013), (61, 1289848), (62, 1269044), (122, 644924), (124, 634522), (217, 362584), (244, 322462), (248, 317261), (427, 184264), (434, 181292), (488, 161231), (743, 105896), (854, 92132), (868, 90646), (1486, 52948), (1708, 46066), (1736, 45323), (1891, 41608), (2972, 26474), (3416, 23033), (3782, 20804), (5201, 15128), (5944, 13237), (7564, 10402)]