79450780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{499}}^1$

素因数の和:946

約数の個数: 48

約数和(自身を含む): 176400000

約数和(自身を除く): 96949220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 419, 499, 838, 998, 1676, 1996, 2095, 2495, 4190, 4990, 7961, 8380, 9481, 9980, 15922, 18962, 31844, 37924, 39805, 47405, 79610, 94810, 159220, 189620, 209081, 418162, 836324, 1045405, 2090810, 3972539, 4181620, 7945078, 15890156, 19862695, 39725390, 79450780]

約数ペア:

[(1, 79450780), (2, 39725390), (4, 19862695), (5, 15890156), (10, 7945078), (19, 4181620), (20, 3972539), (38, 2090810), (76, 1045405), (95, 836324), (190, 418162), (380, 209081), (419, 189620), (499, 159220), (838, 94810), (998, 79610), (1676, 47405), (1996, 39805), (2095, 37924), (2495, 31844), (4190, 18962), (4990, 15922), (7961, 9980), (8380, 9481)]