161495516

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{1229}}^1$

素因数の和:1291

約数の個数: 72

約数和(自身を含む): 367405920

約数和(自身を除く): 205910404

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 52, 76, 91, 133, 182, 247, 266, 361, 364, 494, 532, 722, 988, 1229, 1444, 1729, 2458, 2527, 3458, 4693, 4916, 5054, 6916, 8603, 9386, 10108, 15977, 17206, 18772, 23351, 31954, 32851, 34412, 46702, 63908, 65702, 93404, 111839, 131404, 163457, 223678, 303563, 326914, 443669, 447356, 607126, 653828, 887338, 1214252, 1774676, 2124941, 3105683, 4249882, 5767697, 6211366, 8499764, 11535394, 12422732, 23070788, 40373879, 80747758, 161495516]

約数ペア:

[(1, 161495516), (2, 80747758), (4, 40373879), (7, 23070788), (13, 12422732), (14, 11535394), (19, 8499764), (26, 6211366), (28, 5767697), (38, 4249882), (52, 3105683), (76, 2124941), (91, 1774676), (133, 1214252), (182, 887338), (247, 653828), (266, 607126), (361, 447356), (364, 443669), (494, 326914), (532, 303563), (722, 223678), (988, 163457), (1229, 131404), (1444, 111839), (1729, 93404), (2458, 65702), (2527, 63908), (3458, 46702), (4693, 34412), (4916, 32851), (5054, 31954), (6916, 23351), (8603, 18772), (9386, 17206), (10108, 15977)]