219763760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{161591}}^1$

素因数の和:161621

約数の個数: 40

約数和(自身を含む): 541010016

約数和(自身を除く): 321246256

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 161591, 323182, 646364, 807955, 1292728, 1615910, 2585456, 2747047, 3231820, 5494094, 6463640, 10988188, 12927280, 13735235, 21976376, 27470470, 43952752, 54940940, 109881880, 219763760]

約数ペア:

[(1, 219763760), (2, 109881880), (4, 54940940), (5, 43952752), (8, 27470470), (10, 21976376), (16, 13735235), (17, 12927280), (20, 10988188), (34, 6463640), (40, 5494094), (68, 3231820), (80, 2747047), (85, 2585456), (136, 1615910), (170, 1292728), (272, 807955), (340, 646364), (680, 323182), (1360, 161591)]