22128520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 51891840

約数和(自身を除く): 29763320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 103, 131, 164, 205, 206, 262, 328, 410, 412, 515, 524, 655, 820, 824, 1030, 1048, 1310, 1640, 2060, 2620, 4120, 4223, 5240, 5371, 8446, 10742, 13493, 16892, 21115, 21484, 26855, 26986, 33784, 42230, 42968, 53710, 53972, 67465, 84460, 107420, 107944, 134930, 168920, 214840, 269860, 539720, 553213, 1106426, 2212852, 2766065, 4425704, 5532130, 11064260, 22128520]

約数ペア:

[(1, 22128520), (2, 11064260), (4, 5532130), (5, 4425704), (8, 2766065), (10, 2212852), (20, 1106426), (40, 553213), (41, 539720), (82, 269860), (103, 214840), (131, 168920), (164, 134930), (205, 107944), (206, 107420), (262, 84460), (328, 67465), (410, 53972), (412, 53710), (515, 42968), (524, 42230), (655, 33784), (820, 26986), (824, 26855), (1030, 21484), (1048, 21115), (1310, 16892), (1640, 13493), (2060, 10742), (2620, 8446), (4120, 5371), (4223, 5240)]