16472440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 38792160

約数和(自身を除く): 22319720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 61, 86, 122, 157, 172, 215, 244, 305, 314, 344, 430, 488, 610, 628, 785, 860, 1220, 1256, 1570, 1720, 2440, 2623, 3140, 5246, 6280, 6751, 9577, 10492, 13115, 13502, 19154, 20984, 26230, 27004, 33755, 38308, 47885, 52460, 54008, 67510, 76616, 95770, 104920, 135020, 191540, 270040, 383080, 411811, 823622, 1647244, 2059055, 3294488, 4118110, 8236220, 16472440]

約数ペア:

[(1, 16472440), (2, 8236220), (4, 4118110), (5, 3294488), (8, 2059055), (10, 1647244), (20, 823622), (40, 411811), (43, 383080), (61, 270040), (86, 191540), (122, 135020), (157, 104920), (172, 95770), (215, 76616), (244, 67510), (305, 54008), (314, 52460), (344, 47885), (430, 38308), (488, 33755), (610, 27004), (628, 26230), (785, 20984), (860, 19154), (1220, 13502), (1256, 13115), (1570, 10492), (1720, 9577), (2440, 6751), (2623, 6280), (3140, 5246)]