261569360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1543}}^1$

素因数の和:1732

約数の個数: 80

約数和(自身を含む): 659374464

約数和(自身を除く): 397805104

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 163, 208, 260, 326, 520, 652, 815, 1040, 1304, 1543, 1630, 2119, 2608, 3086, 3260, 4238, 6172, 6520, 7715, 8476, 10595, 12344, 13040, 15430, 16952, 20059, 21190, 24688, 30860, 33904, 40118, 42380, 61720, 80236, 84760, 100295, 123440, 160472, 169520, 200590, 251509, 320944, 401180, 503018, 802360, 1006036, 1257545, 1604720, 2012072, 2515090, 3269617, 4024144, 5030180, 6539234, 10060360, 13078468, 16348085, 20120720, 26156936, 32696170, 52313872, 65392340, 130784680, 261569360]

約数ペア:

[(1, 261569360), (2, 130784680), (4, 65392340), (5, 52313872), (8, 32696170), (10, 26156936), (13, 20120720), (16, 16348085), (20, 13078468), (26, 10060360), (40, 6539234), (52, 5030180), (65, 4024144), (80, 3269617), (104, 2515090), (130, 2012072), (163, 1604720), (208, 1257545), (260, 1006036), (326, 802360), (520, 503018), (652, 401180), (815, 320944), (1040, 251509), (1304, 200590), (1543, 169520), (1630, 160472), (2119, 123440), (2608, 100295), (3086, 84760), (3260, 80236), (4238, 61720), (6172, 42380), (6520, 40118), (7715, 33904), (8476, 30860), (10595, 24688), (12344, 21190), (13040, 20059), (15430, 16952)]