8465840

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:186

約数の個数: 80

約数和(自身を含む): 21212928

約数和(自身を除く): 12747088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 43, 46, 80, 86, 92, 107, 115, 172, 184, 214, 215, 230, 344, 368, 428, 430, 460, 535, 688, 856, 860, 920, 989, 1070, 1712, 1720, 1840, 1978, 2140, 2461, 3440, 3956, 4280, 4601, 4922, 4945, 7912, 8560, 9202, 9844, 9890, 12305, 15824, 18404, 19688, 19780, 23005, 24610, 36808, 39376, 39560, 46010, 49220, 73616, 79120, 92020, 98440, 105823, 184040, 196880, 211646, 368080, 423292, 529115, 846584, 1058230, 1693168, 2116460, 4232920, 8465840]

約数ペア:

[(1, 8465840), (2, 4232920), (4, 2116460), (5, 1693168), (8, 1058230), (10, 846584), (16, 529115), (20, 423292), (23, 368080), (40, 211646), (43, 196880), (46, 184040), (80, 105823), (86, 98440), (92, 92020), (107, 79120), (115, 73616), (172, 49220), (184, 46010), (214, 39560), (215, 39376), (230, 36808), (344, 24610), (368, 23005), (428, 19780), (430, 19688), (460, 18404), (535, 15824), (688, 12305), (856, 9890), (860, 9844), (920, 9202), (989, 8560), (1070, 7912), (1712, 4945), (1720, 4922), (1840, 4601), (1978, 4280), (2140, 3956), (2461, 3440)]