20746120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{30509}}^1$

素因数の和:30537

約数の個数: 32

約数和(自身を含む): 49426200

約数和(自身を除く): 28680080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 30509, 61018, 122036, 152545, 244072, 305090, 518653, 610180, 1037306, 1220360, 2074612, 2593265, 4149224, 5186530, 10373060, 20746120]

約数ペア:

[(1, 20746120), (2, 10373060), (4, 5186530), (5, 4149224), (8, 2593265), (10, 2074612), (17, 1220360), (20, 1037306), (34, 610180), (40, 518653), (68, 305090), (85, 244072), (136, 152545), (170, 122036), (340, 61018), (680, 30509)]