71640440

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{409}}^1$

素因数の和:600

約数の個数: 64

約数和(自身を含む): 168264000

約数和(自身を除く): 96623560

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 151, 232, 290, 302, 409, 580, 604, 755, 818, 1160, 1208, 1510, 1636, 2045, 3020, 3272, 4090, 4379, 6040, 8180, 8758, 11861, 16360, 17516, 21895, 23722, 35032, 43790, 47444, 59305, 61759, 87580, 94888, 118610, 123518, 175160, 237220, 247036, 308795, 474440, 494072, 617590, 1235180, 1791011, 2470360, 3582022, 7164044, 8955055, 14328088, 17910110, 35820220, 71640440]

約数ペア:

[(1, 71640440), (2, 35820220), (4, 17910110), (5, 14328088), (8, 8955055), (10, 7164044), (20, 3582022), (29, 2470360), (40, 1791011), (58, 1235180), (116, 617590), (145, 494072), (151, 474440), (232, 308795), (290, 247036), (302, 237220), (409, 175160), (580, 123518), (604, 118610), (755, 94888), (818, 87580), (1160, 61759), (1208, 59305), (1510, 47444), (1636, 43790), (2045, 35032), (3020, 23722), (3272, 21895), (4090, 17516), (4379, 16360), (6040, 11861), (8180, 8758)]