128856880

素因数分解:

$2^4\times 5^1\times {\mathrm{599}}^1\times {\mathrm{2689}}^1$

素因数の和:3301

約数の個数: 40

約数和(自身を含む): 300204000

約数和(自身を除く): 171347120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 599, 1198, 2396, 2689, 2995, 4792, 5378, 5990, 9584, 10756, 11980, 13445, 21512, 23960, 26890, 43024, 47920, 53780, 107560, 215120, 1610711, 3221422, 6442844, 8053555, 12885688, 16107110, 25771376, 32214220, 64428440, 128856880]

約数ペア:

[(1, 128856880), (2, 64428440), (4, 32214220), (5, 25771376), (8, 16107110), (10, 12885688), (16, 8053555), (20, 6442844), (40, 3221422), (80, 1610711), (599, 215120), (1198, 107560), (2396, 53780), (2689, 47920), (2995, 43024), (4792, 26890), (5378, 23960), (5990, 21512), (9584, 13445), (10756, 11980)]