78718840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{115763}}^1$

素因数の和:115791

約数の個数: 32

約数和(自身を含む): 187537680

約数和(自身を除く): 108818840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 115763, 231526, 463052, 578815, 926104, 1157630, 1967971, 2315260, 3935942, 4630520, 7871884, 9839855, 15743768, 19679710, 39359420, 78718840]

約数ペア:

[(1, 78718840), (2, 39359420), (4, 19679710), (5, 15743768), (8, 9839855), (10, 7871884), (17, 4630520), (20, 3935942), (34, 2315260), (40, 1967971), (68, 1157630), (85, 926104), (136, 578815), (170, 463052), (340, 231526), (680, 115763)]