561781640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:439

約数の個数: 128

約数和(自身を含む): 1482624000

約数和(自身を除く): 920842360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 109, 140, 158, 218, 233, 280, 316, 395, 436, 466, 545, 553, 632, 763, 790, 872, 932, 1090, 1106, 1165, 1526, 1580, 1631, 1864, 2180, 2212, 2330, 2765, 3052, 3160, 3262, 3815, 4360, 4424, 4660, 5530, 6104, 6524, 7630, 8155, 8611, 9320, 11060, 13048, 15260, 16310, 17222, 18407, 22120, 25397, 30520, 32620, 34444, 36814, 43055, 50794, 60277, 65240, 68888, 73628, 86110, 92035, 101588, 120554, 126985, 128849, 147256, 172220, 177779, 184070, 203176, 241108, 253970, 257698, 301385, 344440, 355558, 368140, 482216, 507940, 515396, 602770, 644245, 711116, 736280, 888895, 1015880, 1030792, 1205540, 1288490, 1422232, 1777790, 2006363, 2411080, 2576980, 3555580, 4012726, 5153960, 7111160, 8025452, 10031815, 14044541, 16050904, 20063630, 28089082, 40127260, 56178164, 70222705, 80254520, 112356328, 140445410, 280890820, 561781640]

約数ペア:

[(1, 561781640), (2, 280890820), (4, 140445410), (5, 112356328), (7, 80254520), (8, 70222705), (10, 56178164), (14, 40127260), (20, 28089082), (28, 20063630), (35, 16050904), (40, 14044541), (56, 10031815), (70, 8025452), (79, 7111160), (109, 5153960), (140, 4012726), (158, 3555580), (218, 2576980), (233, 2411080), (280, 2006363), (316, 1777790), (395, 1422232), (436, 1288490), (466, 1205540), (545, 1030792), (553, 1015880), (632, 888895), (763, 736280), (790, 711116), (872, 644245), (932, 602770), (1090, 515396), (1106, 507940), (1165, 482216), (1526, 368140), (1580, 355558), (1631, 344440), (1864, 301385), (2180, 257698), (2212, 253970), (2330, 241108), (2765, 203176), (3052, 184070), (3160, 177779), (3262, 172220), (3815, 147256), (4360, 128849), (4424, 126985), (4660, 120554), (5530, 101588), (6104, 92035), (6524, 86110), (7630, 73628), (8155, 68888), (8611, 65240), (9320, 60277), (11060, 50794), (13048, 43055), (15260, 36814), (16310, 34444), (17222, 32620), (18407, 30520), (22120, 25397)]