85704520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1787}}^1$

素因数の和:1918

約数の個数: 64

約数和(自身を含む): 212414400

約数和(自身を除く): 126709880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 109, 110, 218, 220, 436, 440, 545, 872, 1090, 1199, 1787, 2180, 2398, 3574, 4360, 4796, 5995, 7148, 8935, 9592, 11990, 14296, 17870, 19657, 23980, 35740, 39314, 47960, 71480, 78628, 98285, 157256, 194783, 196570, 389566, 393140, 779132, 786280, 973915, 1558264, 1947830, 2142613, 3895660, 4285226, 7791320, 8570452, 10713065, 17140904, 21426130, 42852260, 85704520]

約数ペア:

[(1, 85704520), (2, 42852260), (4, 21426130), (5, 17140904), (8, 10713065), (10, 8570452), (11, 7791320), (20, 4285226), (22, 3895660), (40, 2142613), (44, 1947830), (55, 1558264), (88, 973915), (109, 786280), (110, 779132), (218, 393140), (220, 389566), (436, 196570), (440, 194783), (545, 157256), (872, 98285), (1090, 78628), (1199, 71480), (1787, 47960), (2180, 39314), (2398, 35740), (3574, 23980), (4360, 19657), (4796, 17870), (5995, 14296), (7148, 11990), (8935, 9592)]