8427760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 21864672

約数和(自身を除く): 13436912

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 61, 80, 88, 110, 122, 157, 176, 220, 244, 305, 314, 440, 488, 610, 628, 671, 785, 880, 976, 1220, 1256, 1342, 1570, 1727, 2440, 2512, 2684, 3140, 3355, 3454, 4880, 5368, 6280, 6710, 6908, 8635, 9577, 10736, 12560, 13420, 13816, 17270, 19154, 26840, 27632, 34540, 38308, 47885, 53680, 69080, 76616, 95770, 105347, 138160, 153232, 191540, 210694, 383080, 421388, 526735, 766160, 842776, 1053470, 1685552, 2106940, 4213880, 8427760]

約数ペア:

[(1, 8427760), (2, 4213880), (4, 2106940), (5, 1685552), (8, 1053470), (10, 842776), (11, 766160), (16, 526735), (20, 421388), (22, 383080), (40, 210694), (44, 191540), (55, 153232), (61, 138160), (80, 105347), (88, 95770), (110, 76616), (122, 69080), (157, 53680), (176, 47885), (220, 38308), (244, 34540), (305, 27632), (314, 26840), (440, 19154), (488, 17270), (610, 13816), (628, 13420), (671, 12560), (785, 10736), (880, 9577), (976, 8635), (1220, 6908), (1256, 6710), (1342, 6280), (1570, 5368), (1727, 4880), (2440, 3454), (2512, 3355), (2684, 3140)]