420199195

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{379}}^1\times {\mathrm{461}}^1$

素因数の和:895

約数の個数: 32

約数和(自身を含む): 560387520

約数和(自身を除く): 140188325

約数列:

[1, 5, 13, 37, 65, 185, 379, 461, 481, 1895, 2305, 2405, 4927, 5993, 14023, 17057, 24635, 29965, 70115, 85285, 174719, 182299, 221741, 873595, 911495, 1108705, 2271347, 6464603, 11356735, 32323015, 84039839, 420199195]

約数ペア:

[(1, 420199195), (5, 84039839), (13, 32323015), (37, 11356735), (65, 6464603), (185, 2271347), (379, 1108705), (461, 911495), (481, 873595), (1895, 221741), (2305, 182299), (2405, 174719), (4927, 85285), (5993, 70115), (14023, 29965), (17057, 24635)]