17621680

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:254

約数の個数: 80

約数和(自身を含む): 43729344

約数和(自身を除く): 26107664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 61, 80, 92, 115, 122, 157, 184, 230, 244, 305, 314, 368, 460, 488, 610, 628, 785, 920, 976, 1220, 1256, 1403, 1570, 1840, 2440, 2512, 2806, 3140, 3611, 4880, 5612, 6280, 7015, 7222, 9577, 11224, 12560, 14030, 14444, 18055, 19154, 22448, 28060, 28888, 36110, 38308, 47885, 56120, 57776, 72220, 76616, 95770, 112240, 144440, 153232, 191540, 220271, 288880, 383080, 440542, 766160, 881084, 1101355, 1762168, 2202710, 3524336, 4405420, 8810840, 17621680]

約数ペア:

[(1, 17621680), (2, 8810840), (4, 4405420), (5, 3524336), (8, 2202710), (10, 1762168), (16, 1101355), (20, 881084), (23, 766160), (40, 440542), (46, 383080), (61, 288880), (80, 220271), (92, 191540), (115, 153232), (122, 144440), (157, 112240), (184, 95770), (230, 76616), (244, 72220), (305, 57776), (314, 56120), (368, 47885), (460, 38308), (488, 36110), (610, 28888), (628, 28060), (785, 22448), (920, 19154), (976, 18055), (1220, 14444), (1256, 14030), (1403, 12560), (1570, 11224), (1840, 9577), (2440, 7222), (2512, 7015), (2806, 6280), (3140, 5612), (3611, 4880)]