8438660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{419}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 19051200

約数和(自身を除く): 10612540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 212, 265, 380, 419, 530, 838, 1007, 1060, 1676, 2014, 2095, 4028, 4190, 5035, 7961, 8380, 10070, 15922, 20140, 22207, 31844, 39805, 44414, 79610, 88828, 111035, 159220, 222070, 421933, 444140, 843866, 1687732, 2109665, 4219330, 8438660]

約数ペア:

[(1, 8438660), (2, 4219330), (4, 2109665), (5, 1687732), (10, 843866), (19, 444140), (20, 421933), (38, 222070), (53, 159220), (76, 111035), (95, 88828), (106, 79610), (190, 44414), (212, 39805), (265, 31844), (380, 22207), (419, 20140), (530, 15922), (838, 10070), (1007, 8380), (1060, 7961), (1676, 5035), (2014, 4190), (2095, 4028)]