128083760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{691}}^1$

素因数の和:1042

約数の個数: 80

約数和(自身を含む): 341859072

約数和(自身を除く): 213775312

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 331, 560, 662, 691, 1324, 1382, 1655, 2317, 2648, 2764, 3310, 3455, 4634, 4837, 5296, 5528, 6620, 6910, 9268, 9674, 11056, 11585, 13240, 13820, 18536, 19348, 23170, 24185, 26480, 27640, 37072, 38696, 46340, 48370, 55280, 77392, 92680, 96740, 185360, 193480, 228721, 386960, 457442, 914884, 1143605, 1601047, 1829768, 2287210, 3202094, 3659536, 4574420, 6404188, 8005235, 9148840, 12808376, 16010470, 18297680, 25616752, 32020940, 64041880, 128083760]

約数ペア:

[(1, 128083760), (2, 64041880), (4, 32020940), (5, 25616752), (7, 18297680), (8, 16010470), (10, 12808376), (14, 9148840), (16, 8005235), (20, 6404188), (28, 4574420), (35, 3659536), (40, 3202094), (56, 2287210), (70, 1829768), (80, 1601047), (112, 1143605), (140, 914884), (280, 457442), (331, 386960), (560, 228721), (662, 193480), (691, 185360), (1324, 96740), (1382, 92680), (1655, 77392), (2317, 55280), (2648, 48370), (2764, 46340), (3310, 38696), (3455, 37072), (4634, 27640), (4837, 26480), (5296, 24185), (5528, 23170), (6620, 19348), (6910, 18536), (9268, 13820), (9674, 13240), (11056, 11585)]