8689040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6389}}^1$

素因数の和:6419

約数の個数: 40

約数和(自身を含む): 21393720

約数和(自身を除く): 12704680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 6389, 12778, 25556, 31945, 51112, 63890, 102224, 108613, 127780, 217226, 255560, 434452, 511120, 543065, 868904, 1086130, 1737808, 2172260, 4344520, 8689040]

約数ペア:

[(1, 8689040), (2, 4344520), (4, 2172260), (5, 1737808), (8, 1086130), (10, 868904), (16, 543065), (17, 511120), (20, 434452), (34, 255560), (40, 217226), (68, 127780), (80, 108613), (85, 102224), (136, 63890), (170, 51112), (272, 31945), (340, 25556), (680, 12778), (1360, 6389)]