639028188

素因数分解:

$2^2\times 3^2\times {\mathrm{89}}^1\times {\mathrm{199447}}^1$

素因数の和:199546

約数の個数: 36

約数和(自身を含む): 1633479120

約数和(自身を除く): 994450932

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 89, 178, 267, 356, 534, 801, 1068, 1602, 3204, 199447, 398894, 598341, 797788, 1196682, 1795023, 2393364, 3590046, 7180092, 17750783, 35501566, 53252349, 71003132, 106504698, 159757047, 213009396, 319514094, 639028188]

約数ペア:

[(1, 639028188), (2, 319514094), (3, 213009396), (4, 159757047), (6, 106504698), (9, 71003132), (12, 53252349), (18, 35501566), (36, 17750783), (89, 7180092), (178, 3590046), (267, 2393364), (356, 1795023), (534, 1196682), (801, 797788), (1068, 598341), (1602, 398894), (3204, 199447)]