20097989080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{199}}^1\times {\mathrm{1163}}^1$

素因数の和:1553

約数の個数: 128

約数和(自身を含む): 49279104000

約数和(自身を除く): 29181114920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 167, 199, 260, 334, 398, 520, 668, 796, 835, 995, 1163, 1336, 1592, 1670, 1990, 2171, 2326, 2587, 3340, 3980, 4342, 4652, 5174, 5815, 6680, 7960, 8684, 9304, 10348, 10855, 11630, 12935, 15119, 17368, 20696, 21710, 23260, 25870, 30238, 33233, 43420, 46520, 51740, 60476, 66466, 75595, 86840, 103480, 120952, 132932, 151190, 166165, 194221, 231437, 265864, 302380, 332330, 388442, 432029, 462874, 604760, 664660, 776884, 864058, 925748, 971105, 1157185, 1329320, 1553768, 1728116, 1851496, 1942210, 2160145, 2314370, 2524873, 3008681, 3456232, 3884420, 4320290, 4628740, 5049746, 6017362, 7768840, 8640580, 9257480, 10099492, 12034724, 12624365, 15043405, 17281160, 20198984, 24069448, 25248730, 30086810, 38649979, 50497460, 60173620, 77299958, 100994920, 120347240, 154599916, 193249895, 309199832, 386499790, 502449727, 772999580, 1004899454, 1545999160, 2009798908, 2512248635, 4019597816, 5024497270, 10048994540, 20097989080]

約数ペア:

[(1, 20097989080), (2, 10048994540), (4, 5024497270), (5, 4019597816), (8, 2512248635), (10, 2009798908), (13, 1545999160), (20, 1004899454), (26, 772999580), (40, 502449727), (52, 386499790), (65, 309199832), (104, 193249895), (130, 154599916), (167, 120347240), (199, 100994920), (260, 77299958), (334, 60173620), (398, 50497460), (520, 38649979), (668, 30086810), (796, 25248730), (835, 24069448), (995, 20198984), (1163, 17281160), (1336, 15043405), (1592, 12624365), (1670, 12034724), (1990, 10099492), (2171, 9257480), (2326, 8640580), (2587, 7768840), (3340, 6017362), (3980, 5049746), (4342, 4628740), (4652, 4320290), (5174, 3884420), (5815, 3456232), (6680, 3008681), (7960, 2524873), (8684, 2314370), (9304, 2160145), (10348, 1942210), (10855, 1851496), (11630, 1728116), (12935, 1553768), (15119, 1329320), (17368, 1157185), (20696, 971105), (21710, 925748), (23260, 864058), (25870, 776884), (30238, 664660), (33233, 604760), (43420, 462874), (46520, 432029), (51740, 388442), (60476, 332330), (66466, 302380), (75595, 265864), (86840, 231437), (103480, 194221), (120952, 166165), (132932, 151190)]