18446951240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{163}}^1\times {\mathrm{457}}^1$

素因数の和:823

約数の個数: 128

約数和(自身を含む): 43156350720

約数和(自身を除く): 24709399480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 151, 163, 164, 205, 302, 326, 328, 410, 457, 604, 652, 755, 815, 820, 914, 1208, 1304, 1510, 1630, 1640, 1828, 2285, 3020, 3260, 3656, 4570, 6040, 6191, 6520, 6683, 9140, 12382, 13366, 18280, 18737, 24613, 24764, 26732, 30955, 33415, 37474, 49226, 49528, 53464, 61910, 66830, 69007, 74491, 74948, 93685, 98452, 123065, 123820, 133660, 138014, 148982, 149896, 187370, 196904, 246130, 247640, 267320, 276028, 297964, 345035, 372455, 374740, 492260, 552056, 595928, 690070, 744910, 749480, 984520, 1009133, 1380140, 1489820, 2018266, 2760280, 2829287, 2979640, 3054131, 4036532, 5045665, 5658574, 6108262, 8073064, 10091330, 11248141, 11317148, 12216524, 14146435, 15270655, 20182660, 22496282, 22634296, 24433048, 28292870, 30541310, 40365320, 44992564, 56240705, 56585740, 61082620, 89985128, 112481410, 113171480, 122165240, 224962820, 449925640, 461173781, 922347562, 1844695124, 2305868905, 3689390248, 4611737810, 9223475620, 18446951240]

約数ペア:

[(1, 18446951240), (2, 9223475620), (4, 4611737810), (5, 3689390248), (8, 2305868905), (10, 1844695124), (20, 922347562), (40, 461173781), (41, 449925640), (82, 224962820), (151, 122165240), (163, 113171480), (164, 112481410), (205, 89985128), (302, 61082620), (326, 56585740), (328, 56240705), (410, 44992564), (457, 40365320), (604, 30541310), (652, 28292870), (755, 24433048), (815, 22634296), (820, 22496282), (914, 20182660), (1208, 15270655), (1304, 14146435), (1510, 12216524), (1630, 11317148), (1640, 11248141), (1828, 10091330), (2285, 8073064), (3020, 6108262), (3260, 5658574), (3656, 5045665), (4570, 4036532), (6040, 3054131), (6191, 2979640), (6520, 2829287), (6683, 2760280), (9140, 2018266), (12382, 1489820), (13366, 1380140), (18280, 1009133), (18737, 984520), (24613, 749480), (24764, 744910), (26732, 690070), (30955, 595928), (33415, 552056), (37474, 492260), (49226, 374740), (49528, 372455), (53464, 345035), (61910, 297964), (66830, 276028), (69007, 267320), (74491, 247640), (74948, 246130), (93685, 196904), (98452, 187370), (123065, 149896), (123820, 148982), (133660, 138014)]