20431960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{30047}}^1$

素因数の和:30075

約数の個数: 32

約数和(自身を含む): 48677760

約数和(自身を除く): 28245800

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 30047, 60094, 120188, 150235, 240376, 300470, 510799, 600940, 1021598, 1201880, 2043196, 2553995, 4086392, 5107990, 10215980, 20431960]

約数ペア:

[(1, 20431960), (2, 10215980), (4, 5107990), (5, 4086392), (8, 2553995), (10, 2043196), (17, 1201880), (20, 1021598), (34, 600940), (40, 510799), (68, 300470), (85, 240376), (136, 150235), (170, 120188), (340, 60094), (680, 30047)]