7215820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1117}}^1$

素因数の和:1162

約数の個数: 48

約数和(自身を含む): 16904160

約数和(自身を除く): 9688340

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1117, 1292, 1615, 2234, 3230, 4468, 5585, 6460, 11170, 18989, 21223, 22340, 37978, 42446, 75956, 84892, 94945, 106115, 189890, 212230, 360791, 379780, 424460, 721582, 1443164, 1803955, 3607910, 7215820]

約数ペア:

[(1, 7215820), (2, 3607910), (4, 1803955), (5, 1443164), (10, 721582), (17, 424460), (19, 379780), (20, 360791), (34, 212230), (38, 189890), (68, 106115), (76, 94945), (85, 84892), (95, 75956), (170, 42446), (190, 37978), (323, 22340), (340, 21223), (380, 18989), (646, 11170), (1117, 6460), (1292, 5585), (1615, 4468), (2234, 3230)]