20348078348

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{79}}^1\times {\mathrm{13721}}^1$

素因数の和:13855

約数の個数: 72

約数和(自身を含む): 40988162880

約数和(自身を除く): 20640084532

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 79, 158, 247, 316, 361, 494, 722, 988, 1027, 1444, 1501, 2054, 3002, 4108, 4693, 6004, 9386, 13721, 18772, 19513, 27442, 28519, 39026, 54884, 57038, 78052, 114076, 178373, 260699, 356746, 370747, 521398, 713492, 741494, 1042796, 1083959, 1482988, 2167918, 3389087, 4335836, 4953281, 6778174, 9906562, 13556348, 14091467, 19813124, 20595221, 28182934, 41190442, 56365868, 64392653, 82380884, 128785306, 257570612, 267737873, 391309199, 535475746, 782618398, 1070951492, 1565236796, 5087019587, 10174039174, 20348078348]

約数ペア:

[(1, 20348078348), (2, 10174039174), (4, 5087019587), (13, 1565236796), (19, 1070951492), (26, 782618398), (38, 535475746), (52, 391309199), (76, 267737873), (79, 257570612), (158, 128785306), (247, 82380884), (316, 64392653), (361, 56365868), (494, 41190442), (722, 28182934), (988, 20595221), (1027, 19813124), (1444, 14091467), (1501, 13556348), (2054, 9906562), (3002, 6778174), (4108, 4953281), (4693, 4335836), (6004, 3389087), (9386, 2167918), (13721, 1482988), (18772, 1083959), (19513, 1042796), (27442, 741494), (28519, 713492), (39026, 521398), (54884, 370747), (57038, 356746), (78052, 260699), (114076, 178373)]