309008

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:135

約数の個数: 40

約数和(自身を含む): 714240

約数和(自身を除く): 405232

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 89, 112, 124, 178, 217, 248, 356, 434, 496, 623, 712, 868, 1246, 1424, 1736, 2492, 2759, 3472, 4984, 5518, 9968, 11036, 19313, 22072, 38626, 44144, 77252, 154504, 309008]

約数ペア:

[(1, 309008), (2, 154504), (4, 77252), (7, 44144), (8, 38626), (14, 22072), (16, 19313), (28, 11036), (31, 9968), (56, 5518), (62, 4984), (89, 3472), (112, 2759), (124, 2492), (178, 1736), (217, 1424), (248, 1246), (356, 868), (434, 712), (496, 623)]