906804925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 1309603680

約数和(自身を除く): 402798755

約数列:

[1, 5, 13, 19, 25, 59, 65, 95, 131, 247, 295, 325, 361, 475, 655, 767, 1121, 1235, 1475, 1703, 1805, 2489, 3275, 3835, 4693, 5605, 6175, 7729, 8515, 9025, 12445, 14573, 19175, 21299, 23465, 28025, 32357, 38645, 42575, 47291, 62225, 72865, 100477, 106495, 117325, 146851, 161785, 193225, 236455, 276887, 364325, 502385, 532475, 614783, 734255, 808925, 1182275, 1384435, 1909063, 2511925, 2790169, 3073915, 3671275, 6922175, 9545315, 13950845, 15369575, 36272197, 47726575, 69754225, 181360985, 906804925]

約数ペア:

[(1, 906804925), (5, 181360985), (13, 69754225), (19, 47726575), (25, 36272197), (59, 15369575), (65, 13950845), (95, 9545315), (131, 6922175), (247, 3671275), (295, 3073915), (325, 2790169), (361, 2511925), (475, 1909063), (655, 1384435), (767, 1182275), (1121, 808925), (1235, 734255), (1475, 614783), (1703, 532475), (1805, 502385), (2489, 364325), (3275, 276887), (3835, 236455), (4693, 193225), (5605, 161785), (6175, 146851), (7729, 117325), (8515, 106495), (9025, 100477), (12445, 72865), (14573, 62225), (19175, 47291), (21299, 42575), (23465, 38645), (28025, 32357)]