81426480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2161}}^1$

素因数の和:2334

約数の個数: 80

約数和(自身を含む): 254147424

約数和(自身を除く): 172720944

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 157, 240, 314, 471, 628, 785, 942, 1256, 1570, 1884, 2161, 2355, 2512, 3140, 3768, 4322, 4710, 6280, 6483, 7536, 8644, 9420, 10805, 12560, 12966, 17288, 18840, 21610, 25932, 32415, 34576, 37680, 43220, 51864, 64830, 86440, 103728, 129660, 172880, 259320, 339277, 518640, 678554, 1017831, 1357108, 1696385, 2035662, 2714216, 3392770, 4071324, 5089155, 5428432, 6785540, 8142648, 10178310, 13571080, 16285296, 20356620, 27142160, 40713240, 81426480]

約数ペア:

[(1, 81426480), (2, 40713240), (3, 27142160), (4, 20356620), (5, 16285296), (6, 13571080), (8, 10178310), (10, 8142648), (12, 6785540), (15, 5428432), (16, 5089155), (20, 4071324), (24, 3392770), (30, 2714216), (40, 2035662), (48, 1696385), (60, 1357108), (80, 1017831), (120, 678554), (157, 518640), (240, 339277), (314, 259320), (471, 172880), (628, 129660), (785, 103728), (942, 86440), (1256, 64830), (1570, 51864), (1884, 43220), (2161, 37680), (2355, 34576), (2512, 32415), (3140, 25932), (3768, 21610), (4322, 18840), (4710, 17288), (6280, 12966), (6483, 12560), (7536, 10805), (8644, 9420)]