219645280

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{17377}}^1$

素因数の和:17471

約数の個数: 48

約数和(自身を含む): 525510720

約数和(自身を除く): 305865440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1264, 1580, 2528, 3160, 6320, 12640, 17377, 34754, 69508, 86885, 139016, 173770, 278032, 347540, 556064, 695080, 1372783, 1390160, 2745566, 2780320, 5491132, 6863915, 10982264, 13727830, 21964528, 27455660, 43929056, 54911320, 109822640, 219645280]

約数ペア:

[(1, 219645280), (2, 109822640), (4, 54911320), (5, 43929056), (8, 27455660), (10, 21964528), (16, 13727830), (20, 10982264), (32, 6863915), (40, 5491132), (79, 2780320), (80, 2745566), (158, 1390160), (160, 1372783), (316, 695080), (395, 556064), (632, 347540), (790, 278032), (1264, 173770), (1580, 139016), (2528, 86885), (3160, 69508), (6320, 34754), (12640, 17377)]