20889780470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8457401}}^1$

素因数の和:8457440

約数の個数: 32

約数和(自身を含む): 42625306080

約数和(自身を除く): 21735525610

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8457401, 16914802, 42287005, 84574010, 109946213, 160690619, 219892426, 321381238, 549731065, 803453095, 1099462130, 1606906190, 2088978047, 4177956094, 10444890235, 20889780470]

約数ペア:

[(1, 20889780470), (2, 10444890235), (5, 4177956094), (10, 2088978047), (13, 1606906190), (19, 1099462130), (26, 803453095), (38, 549731065), (65, 321381238), (95, 219892426), (130, 160690619), (190, 109946213), (247, 84574010), (494, 42287005), (1235, 16914802), (2470, 8457401)]