31641740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{929}}^1$

素因数の和:1082

約数の個数: 48

約数和(自身を含む): 72182880

約数和(自身を除く): 40541140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 655, 929, 1310, 1703, 1858, 2620, 3406, 3716, 4645, 6812, 8515, 9290, 12077, 17030, 18580, 24154, 34060, 48308, 60385, 120770, 121699, 241540, 243398, 486796, 608495, 1216990, 1582087, 2433980, 3164174, 6328348, 7910435, 15820870, 31641740]

約数ペア:

[(1, 31641740), (2, 15820870), (4, 7910435), (5, 6328348), (10, 3164174), (13, 2433980), (20, 1582087), (26, 1216990), (52, 608495), (65, 486796), (130, 243398), (131, 241540), (260, 121699), (262, 120770), (524, 60385), (655, 48308), (929, 34060), (1310, 24154), (1703, 18580), (1858, 17030), (2620, 12077), (3406, 9290), (3716, 8515), (4645, 6812)]