81577335

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 154524672

約数和(自身を除く): 72947337

約数列:

[1, 3, 5, 7, 15, 21, 35, 53, 105, 107, 137, 159, 265, 321, 371, 411, 535, 685, 749, 795, 959, 1113, 1605, 1855, 2055, 2247, 2877, 3745, 4795, 5565, 5671, 7261, 11235, 14385, 14659, 17013, 21783, 28355, 36305, 39697, 43977, 50827, 73295, 85065, 102613, 108915, 119091, 152481, 198485, 219885, 254135, 307839, 513065, 595455, 762405, 776927, 1539195, 2330781, 3884635, 5438489, 11653905, 16315467, 27192445, 81577335]

約数ペア:

[(1, 81577335), (3, 27192445), (5, 16315467), (7, 11653905), (15, 5438489), (21, 3884635), (35, 2330781), (53, 1539195), (105, 776927), (107, 762405), (137, 595455), (159, 513065), (265, 307839), (321, 254135), (371, 219885), (411, 198485), (535, 152481), (685, 119091), (749, 108915), (795, 102613), (959, 85065), (1113, 73295), (1605, 50827), (1855, 43977), (2055, 39697), (2247, 36305), (2877, 28355), (3745, 21783), (4795, 17013), (5565, 14659), (5671, 14385), (7261, 11235)]