64104520

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{12619}}^1$

素因数の和:12757

約数の個数: 32

約数和(自身を含む): 145382400

約数和(自身を除く): 81277880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 12619, 25238, 50476, 63095, 100952, 126190, 252380, 504760, 1602613, 3205226, 6410452, 8013065, 12820904, 16026130, 32052260, 64104520]

約数ペア:

[(1, 64104520), (2, 32052260), (4, 16026130), (5, 12820904), (8, 8013065), (10, 6410452), (20, 3205226), (40, 1602613), (127, 504760), (254, 252380), (508, 126190), (635, 100952), (1016, 63095), (1270, 50476), (2540, 25238), (5080, 12619)]