88085840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{271}}^1$

素因数の和:540

約数の個数: 80

約数和(自身を含む): 218557440

約数和(自身を除く): 130471600

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 239, 271, 272, 340, 478, 542, 680, 956, 1084, 1195, 1355, 1360, 1912, 2168, 2390, 2710, 3824, 4063, 4336, 4607, 4780, 5420, 8126, 9214, 9560, 10840, 16252, 18428, 19120, 20315, 21680, 23035, 32504, 36856, 40630, 46070, 64769, 65008, 73712, 81260, 92140, 129538, 162520, 184280, 259076, 323845, 325040, 368560, 518152, 647690, 1036304, 1101073, 1295380, 2202146, 2590760, 4404292, 5181520, 5505365, 8808584, 11010730, 17617168, 22021460, 44042920, 88085840]

約数ペア:

[(1, 88085840), (2, 44042920), (4, 22021460), (5, 17617168), (8, 11010730), (10, 8808584), (16, 5505365), (17, 5181520), (20, 4404292), (34, 2590760), (40, 2202146), (68, 1295380), (80, 1101073), (85, 1036304), (136, 647690), (170, 518152), (239, 368560), (271, 325040), (272, 323845), (340, 259076), (478, 184280), (542, 162520), (680, 129538), (956, 92140), (1084, 81260), (1195, 73712), (1355, 65008), (1360, 64769), (1912, 46070), (2168, 40630), (2390, 36856), (2710, 32504), (3824, 23035), (4063, 21680), (4336, 20315), (4607, 19120), (4780, 18428), (5420, 16252), (8126, 10840), (9214, 9560)]