257831265680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4657}}^1\times {\mathrm{40709}}^1$

素因数の和:45396

約数の個数: 80

約数和(自身を含む): 634871798640

約数和(自身を除く): 377040532960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 4657, 9314, 18628, 23285, 37256, 40709, 46570, 74512, 79169, 81418, 93140, 158338, 162836, 186280, 203545, 316676, 325672, 372560, 395845, 407090, 633352, 651344, 692053, 791690, 814180, 1266704, 1384106, 1583380, 1628360, 2768212, 3166760, 3256720, 3460265, 5536424, 6333520, 6920530, 11072848, 13841060, 27682120, 55364240, 189581813, 379163626, 758327252, 947909065, 1516654504, 1895818130, 3033309008, 3222890821, 3791636260, 6445781642, 7583272520, 12891563284, 15166545040, 16114454105, 25783126568, 32228908210, 51566253136, 64457816420, 128915632840, 257831265680]

約数ペア:

[(1, 257831265680), (2, 128915632840), (4, 64457816420), (5, 51566253136), (8, 32228908210), (10, 25783126568), (16, 16114454105), (17, 15166545040), (20, 12891563284), (34, 7583272520), (40, 6445781642), (68, 3791636260), (80, 3222890821), (85, 3033309008), (136, 1895818130), (170, 1516654504), (272, 947909065), (340, 758327252), (680, 379163626), (1360, 189581813), (4657, 55364240), (9314, 27682120), (18628, 13841060), (23285, 11072848), (37256, 6920530), (40709, 6333520), (46570, 5536424), (74512, 3460265), (79169, 3256720), (81418, 3166760), (93140, 2768212), (158338, 1628360), (162836, 1583380), (186280, 1384106), (203545, 1266704), (316676, 814180), (325672, 791690), (372560, 692053), (395845, 651344), (407090, 633352)]