81697070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5281}}^1$

素因数の和:5325

約数の個数: 64

約数和(自身を含む): 191673216

約数和(自身を除く): 109976146

約数列:

[1, 2, 5, 7, 10, 13, 14, 17, 26, 34, 35, 65, 70, 85, 91, 119, 130, 170, 182, 221, 238, 442, 455, 595, 910, 1105, 1190, 1547, 2210, 3094, 5281, 7735, 10562, 15470, 26405, 36967, 52810, 68653, 73934, 89777, 137306, 179554, 184835, 343265, 369670, 448885, 480571, 628439, 686530, 897770, 961142, 1167101, 1256878, 2334202, 2402855, 3142195, 4805710, 5835505, 6284390, 8169707, 11671010, 16339414, 40848535, 81697070]

約数ペア:

[(1, 81697070), (2, 40848535), (5, 16339414), (7, 11671010), (10, 8169707), (13, 6284390), (14, 5835505), (17, 4805710), (26, 3142195), (34, 2402855), (35, 2334202), (65, 1256878), (70, 1167101), (85, 961142), (91, 897770), (119, 686530), (130, 628439), (170, 480571), (182, 448885), (221, 369670), (238, 343265), (442, 184835), (455, 179554), (595, 137306), (910, 89777), (1105, 73934), (1190, 68653), (1547, 52810), (2210, 36967), (3094, 26405), (5281, 15470), (7735, 10562)]