20462170

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{443}}^1$

素因数の和:630

約数の個数: 32

約数和(自身を含む): 38361600

約数和(自身を除く): 17899430

約数列:

[1, 2, 5, 10, 31, 62, 149, 155, 298, 310, 443, 745, 886, 1490, 2215, 4430, 4619, 9238, 13733, 23095, 27466, 46190, 66007, 68665, 132014, 137330, 330035, 660070, 2046217, 4092434, 10231085, 20462170]

約数ペア:

[(1, 20462170), (2, 10231085), (5, 4092434), (10, 2046217), (31, 660070), (62, 330035), (149, 137330), (155, 132014), (298, 68665), (310, 66007), (443, 46190), (745, 27466), (886, 23095), (1490, 13733), (2215, 9238), (4430, 4619)]