64723760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47591}}^1$

素因数の和:47621

約数の個数: 40

約数和(自身を含む): 159338016

約数和(自身を除く): 94614256

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 47591, 95182, 190364, 237955, 380728, 475910, 761456, 809047, 951820, 1618094, 1903640, 3236188, 3807280, 4045235, 6472376, 8090470, 12944752, 16180940, 32361880, 64723760]

約数ペア:

[(1, 64723760), (2, 32361880), (4, 16180940), (5, 12944752), (8, 8090470), (10, 6472376), (16, 4045235), (17, 3807280), (20, 3236188), (34, 1903640), (40, 1618094), (68, 951820), (80, 809047), (85, 761456), (136, 475910), (170, 380728), (272, 237955), (340, 190364), (680, 95182), (1360, 47591)]