287127920

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{87539}}^1$

素因数の和:87593

約数の個数: 40

約数和(自身を含む): 683862480

約数和(自身を除く): 396734560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 87539, 175078, 350156, 437695, 700312, 875390, 1400624, 1750780, 3501560, 3589099, 7003120, 7178198, 14356396, 17945495, 28712792, 35890990, 57425584, 71781980, 143563960, 287127920]

約数ペア:

[(1, 287127920), (2, 143563960), (4, 71781980), (5, 57425584), (8, 35890990), (10, 28712792), (16, 17945495), (20, 14356396), (40, 7178198), (41, 7003120), (80, 3589099), (82, 3501560), (164, 1750780), (205, 1400624), (328, 875390), (410, 700312), (656, 437695), (820, 350156), (1640, 175078), (3280, 87539)]