405354460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{839}}^1$

素因数の和:908

約数の個数: 144

約数和(自身を含む): 1085918400

約数和(自身を除く): 680563940

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 29, 34, 35, 49, 58, 68, 70, 85, 98, 116, 119, 140, 145, 170, 196, 203, 238, 245, 290, 340, 406, 476, 490, 493, 580, 595, 812, 833, 839, 980, 986, 1015, 1190, 1421, 1666, 1678, 1972, 2030, 2380, 2465, 2842, 3332, 3356, 3451, 4060, 4165, 4195, 4930, 5684, 5873, 6902, 7105, 8330, 8390, 9860, 11746, 13804, 14210, 14263, 16660, 16780, 17255, 23492, 24157, 24331, 28420, 28526, 29365, 34510, 41111, 48314, 48662, 57052, 58730, 69020, 71315, 82222, 96628, 97324, 99841, 117460, 120785, 121655, 142630, 164444, 170317, 199682, 205555, 241570, 243310, 285260, 340634, 399364, 411110, 413627, 483140, 486620, 499205, 681268, 698887, 822220, 827254, 851585, 998410, 1192219, 1397774, 1654508, 1703170, 1996820, 2068135, 2384438, 2795548, 2895389, 3406340, 3494435, 4136270, 4768876, 5790778, 5961095, 6988870, 8272540, 11581556, 11922190, 13977740, 14476945, 20267723, 23844380, 28953890, 40535446, 57907780, 81070892, 101338615, 202677230, 405354460]

約数ペア:

[(1, 405354460), (2, 202677230), (4, 101338615), (5, 81070892), (7, 57907780), (10, 40535446), (14, 28953890), (17, 23844380), (20, 20267723), (28, 14476945), (29, 13977740), (34, 11922190), (35, 11581556), (49, 8272540), (58, 6988870), (68, 5961095), (70, 5790778), (85, 4768876), (98, 4136270), (116, 3494435), (119, 3406340), (140, 2895389), (145, 2795548), (170, 2384438), (196, 2068135), (203, 1996820), (238, 1703170), (245, 1654508), (290, 1397774), (340, 1192219), (406, 998410), (476, 851585), (490, 827254), (493, 822220), (580, 698887), (595, 681268), (812, 499205), (833, 486620), (839, 483140), (980, 413627), (986, 411110), (1015, 399364), (1190, 340634), (1421, 285260), (1666, 243310), (1678, 241570), (1972, 205555), (2030, 199682), (2380, 170317), (2465, 164444), (2842, 142630), (3332, 121655), (3356, 120785), (3451, 117460), (4060, 99841), (4165, 97324), (4195, 96628), (4930, 82222), (5684, 71315), (5873, 69020), (6902, 58730), (7105, 57052), (8330, 48662), (8390, 48314), (9860, 41111), (11746, 34510), (13804, 29365), (14210, 28526), (14263, 28420), (16660, 24331), (16780, 24157), (17255, 23492)]