858345980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:196

約数の個数: 144

約数和(自身を含む): 2053937088

約数和(自身を除く): 1195591108

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 37, 62, 68, 71, 74, 85, 124, 142, 148, 155, 170, 185, 284, 310, 340, 355, 370, 527, 620, 629, 710, 740, 961, 1054, 1147, 1207, 1258, 1420, 1922, 2108, 2201, 2294, 2414, 2516, 2627, 2635, 3145, 3844, 4402, 4588, 4805, 4828, 5254, 5270, 5735, 6035, 6290, 8804, 9610, 10508, 10540, 11005, 11470, 12070, 12580, 13135, 16337, 19220, 19499, 22010, 22940, 24140, 26270, 32674, 35557, 37417, 38998, 44020, 44659, 52540, 65348, 68231, 71114, 74834, 77996, 81437, 81685, 89318, 97495, 136462, 142228, 149668, 162874, 163370, 177785, 178636, 187085, 194990, 223295, 272924, 325748, 326740, 341155, 355570, 374170, 389980, 407185, 446590, 604469, 682310, 711140, 748340, 814370, 893180, 1159927, 1208938, 1364620, 1384429, 1628740, 2319854, 2417876, 2524547, 2768858, 3022345, 4639708, 5049094, 5537716, 5799635, 6044690, 6922145, 10098188, 11599270, 12089380, 12622735, 13844290, 23198540, 25245470, 27688580, 42917299, 50490940, 85834598, 171669196, 214586495, 429172990, 858345980]

約数ペア:

[(1, 858345980), (2, 429172990), (4, 214586495), (5, 171669196), (10, 85834598), (17, 50490940), (20, 42917299), (31, 27688580), (34, 25245470), (37, 23198540), (62, 13844290), (68, 12622735), (71, 12089380), (74, 11599270), (85, 10098188), (124, 6922145), (142, 6044690), (148, 5799635), (155, 5537716), (170, 5049094), (185, 4639708), (284, 3022345), (310, 2768858), (340, 2524547), (355, 2417876), (370, 2319854), (527, 1628740), (620, 1384429), (629, 1364620), (710, 1208938), (740, 1159927), (961, 893180), (1054, 814370), (1147, 748340), (1207, 711140), (1258, 682310), (1420, 604469), (1922, 446590), (2108, 407185), (2201, 389980), (2294, 374170), (2414, 355570), (2516, 341155), (2627, 326740), (2635, 325748), (3145, 272924), (3844, 223295), (4402, 194990), (4588, 187085), (4805, 178636), (4828, 177785), (5254, 163370), (5270, 162874), (5735, 149668), (6035, 142228), (6290, 136462), (8804, 97495), (9610, 89318), (10508, 81685), (10540, 81437), (11005, 77996), (11470, 74834), (12070, 71114), (12580, 68231), (13135, 65348), (16337, 52540), (19220, 44659), (19499, 44020), (22010, 38998), (22940, 37417), (24140, 35557), (26270, 32674)]