85811720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{69203}}^1$

素因数の和:69245

約数の個数: 32

約数和(自身を含む): 199307520

約数和(自身を除く): 113495800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 69203, 138406, 276812, 346015, 553624, 692030, 1384060, 2145293, 2768120, 4290586, 8581172, 10726465, 17162344, 21452930, 42905860, 85811720]

約数ペア:

[(1, 85811720), (2, 42905860), (4, 21452930), (5, 17162344), (8, 10726465), (10, 8581172), (20, 4290586), (31, 2768120), (40, 2145293), (62, 1384060), (124, 692030), (155, 553624), (248, 346015), (310, 276812), (620, 138406), (1240, 69203)]