8810840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 21159360

約数和(自身を除く): 12348520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 61, 92, 115, 122, 157, 184, 230, 244, 305, 314, 460, 488, 610, 628, 785, 920, 1220, 1256, 1403, 1570, 2440, 2806, 3140, 3611, 5612, 6280, 7015, 7222, 9577, 11224, 14030, 14444, 18055, 19154, 28060, 28888, 36110, 38308, 47885, 56120, 72220, 76616, 95770, 144440, 191540, 220271, 383080, 440542, 881084, 1101355, 1762168, 2202710, 4405420, 8810840]

約数ペア:

[(1, 8810840), (2, 4405420), (4, 2202710), (5, 1762168), (8, 1101355), (10, 881084), (20, 440542), (23, 383080), (40, 220271), (46, 191540), (61, 144440), (92, 95770), (115, 76616), (122, 72220), (157, 56120), (184, 47885), (230, 38308), (244, 36110), (305, 28888), (314, 28060), (460, 19154), (488, 18055), (610, 14444), (628, 14030), (785, 11224), (920, 9577), (1220, 7222), (1256, 7015), (1403, 6280), (1570, 5612), (2440, 3611), (2806, 3140)]