578468020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{28163}}^1$

素因数の和:28264

約数の個数: 48

約数和(自身を含む): 1324834560

約数和(自身を除く): 746366540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1580, 2054, 4108, 5135, 10270, 20540, 28163, 56326, 112652, 140815, 281630, 366119, 563260, 732238, 1464476, 1830595, 2224877, 3661190, 4449754, 7322380, 8899508, 11124385, 22248770, 28923401, 44497540, 57846802, 115693604, 144617005, 289234010, 578468020]

約数ペア:

[(1, 578468020), (2, 289234010), (4, 144617005), (5, 115693604), (10, 57846802), (13, 44497540), (20, 28923401), (26, 22248770), (52, 11124385), (65, 8899508), (79, 7322380), (130, 4449754), (158, 3661190), (260, 2224877), (316, 1830595), (395, 1464476), (790, 732238), (1027, 563260), (1580, 366119), (2054, 281630), (4108, 140815), (5135, 112652), (10270, 56326), (20540, 28163)]