87438760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1117}}^1$

素因数の和:1250

約数の個数: 64

約数和(自身を含む): 209289600

約数和(自身を除く): 121850840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 103, 152, 190, 206, 380, 412, 515, 760, 824, 1030, 1117, 1957, 2060, 2234, 3914, 4120, 4468, 5585, 7828, 8936, 9785, 11170, 15656, 19570, 21223, 22340, 39140, 42446, 44680, 78280, 84892, 106115, 115051, 169784, 212230, 230102, 424460, 460204, 575255, 848920, 920408, 1150510, 2185969, 2301020, 4371938, 4602040, 8743876, 10929845, 17487752, 21859690, 43719380, 87438760]

約数ペア:

[(1, 87438760), (2, 43719380), (4, 21859690), (5, 17487752), (8, 10929845), (10, 8743876), (19, 4602040), (20, 4371938), (38, 2301020), (40, 2185969), (76, 1150510), (95, 920408), (103, 848920), (152, 575255), (190, 460204), (206, 424460), (380, 230102), (412, 212230), (515, 169784), (760, 115051), (824, 106115), (1030, 84892), (1117, 78280), (1957, 44680), (2060, 42446), (2234, 39140), (3914, 22340), (4120, 21223), (4468, 19570), (5585, 15656), (7828, 11170), (8936, 9785)]