20172097790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{47}}^1\times {\mathrm{79}}^2$

素因数の和:271

約数の個数: 144

約数和(自身を含む): 42281725248

約数和(自身を除く): 22109627458

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 47, 65, 79, 94, 115, 130, 158, 230, 235, 299, 395, 470, 529, 598, 611, 790, 1027, 1058, 1081, 1222, 1495, 1817, 2054, 2162, 2645, 2990, 3055, 3634, 3713, 5135, 5290, 5405, 6110, 6241, 6877, 7426, 9085, 10270, 10810, 12482, 13754, 14053, 18170, 18565, 23621, 24863, 28106, 31205, 34385, 37130, 41791, 47242, 48269, 49726, 62410, 68770, 70265, 81133, 83582, 85399, 96538, 118105, 124315, 140530, 143543, 162266, 170798, 208955, 236210, 241345, 248630, 287086, 293327, 323219, 405665, 417910, 426995, 482690, 543283, 586654, 646438, 717715, 811330, 853990, 1086566, 1110187, 1435430, 1466635, 1616095, 1866059, 1964177, 2220374, 2716415, 2933270, 3232190, 3301489, 3732118, 3813251, 3928354, 5432830, 5550935, 6602978, 6746521, 7626502, 9330295, 9820885, 11101870, 13493042, 16507445, 18660590, 19066255, 19641770, 25534301, 33014890, 33732605, 38132510, 42919357, 51068602, 67465210, 85838714, 87704773, 127671505, 155169983, 175409546, 214596785, 255343010, 310339966, 429193570, 438523865, 775849915, 877047730, 1551699830, 2017209779, 4034419558, 10086048895, 20172097790]

約数ペア:

[(1, 20172097790), (2, 10086048895), (5, 4034419558), (10, 2017209779), (13, 1551699830), (23, 877047730), (26, 775849915), (46, 438523865), (47, 429193570), (65, 310339966), (79, 255343010), (94, 214596785), (115, 175409546), (130, 155169983), (158, 127671505), (230, 87704773), (235, 85838714), (299, 67465210), (395, 51068602), (470, 42919357), (529, 38132510), (598, 33732605), (611, 33014890), (790, 25534301), (1027, 19641770), (1058, 19066255), (1081, 18660590), (1222, 16507445), (1495, 13493042), (1817, 11101870), (2054, 9820885), (2162, 9330295), (2645, 7626502), (2990, 6746521), (3055, 6602978), (3634, 5550935), (3713, 5432830), (5135, 3928354), (5290, 3813251), (5405, 3732118), (6110, 3301489), (6241, 3232190), (6877, 2933270), (7426, 2716415), (9085, 2220374), (10270, 1964177), (10810, 1866059), (12482, 1616095), (13754, 1466635), (14053, 1435430), (18170, 1110187), (18565, 1086566), (23621, 853990), (24863, 811330), (28106, 717715), (31205, 646438), (34385, 586654), (37130, 543283), (41791, 482690), (47242, 426995), (48269, 417910), (49726, 405665), (62410, 323219), (68770, 293327), (70265, 287086), (81133, 248630), (83582, 241345), (85399, 236210), (96538, 208955), (118105, 170798), (124315, 162266), (140530, 143543)]