28901471320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{103087}}^1$

素因数の和:103304

約数の個数: 64

約数和(自身を含む): 66949470720

約数和(自身を除く): 38047999400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 163, 172, 215, 326, 344, 430, 652, 815, 860, 1304, 1630, 1720, 3260, 6520, 7009, 14018, 28036, 35045, 56072, 70090, 103087, 140180, 206174, 280360, 412348, 515435, 824696, 1030870, 2061740, 4123480, 4432741, 8865482, 16803181, 17730964, 22163705, 33606362, 35461928, 44327410, 67212724, 84015905, 88654820, 134425448, 168031810, 177309640, 336063620, 672127240, 722536783, 1445073566, 2890147132, 3612683915, 5780294264, 7225367830, 14450735660, 28901471320]

約数ペア:

[(1, 28901471320), (2, 14450735660), (4, 7225367830), (5, 5780294264), (8, 3612683915), (10, 2890147132), (20, 1445073566), (40, 722536783), (43, 672127240), (86, 336063620), (163, 177309640), (172, 168031810), (215, 134425448), (326, 88654820), (344, 84015905), (430, 67212724), (652, 44327410), (815, 35461928), (860, 33606362), (1304, 22163705), (1630, 17730964), (1720, 16803181), (3260, 8865482), (6520, 4432741), (7009, 4123480), (14018, 2061740), (28036, 1030870), (35045, 824696), (56072, 515435), (70090, 412348), (103087, 280360), (140180, 206174)]