81372472

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:320

約数の個数: 64

約数和(自身を含む): 168592320

約数和(自身を除く): 87219848

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 74, 103, 136, 148, 157, 206, 296, 314, 412, 628, 629, 824, 1256, 1258, 1751, 2516, 2669, 3502, 3811, 5032, 5338, 5809, 7004, 7622, 10676, 11618, 14008, 15244, 16171, 21352, 23236, 30488, 32342, 46472, 64684, 64787, 98753, 129368, 129574, 197506, 259148, 274907, 395012, 518296, 549814, 598327, 790024, 1099628, 1196654, 2199256, 2393308, 4786616, 10171559, 20343118, 40686236, 81372472]

約数ペア:

[(1, 81372472), (2, 40686236), (4, 20343118), (8, 10171559), (17, 4786616), (34, 2393308), (37, 2199256), (68, 1196654), (74, 1099628), (103, 790024), (136, 598327), (148, 549814), (157, 518296), (206, 395012), (296, 274907), (314, 259148), (412, 197506), (628, 129574), (629, 129368), (824, 98753), (1256, 64787), (1258, 64684), (1751, 46472), (2516, 32342), (2669, 30488), (3502, 23236), (3811, 21352), (5032, 16171), (5338, 15244), (5809, 14008), (7004, 11618), (7622, 10676)]