51514040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:464

約数の個数: 64

約数和(自身を含む): 120294720

約数和(自身を除く): 68780680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 101, 164, 202, 205, 311, 328, 404, 410, 505, 622, 808, 820, 1010, 1244, 1555, 1640, 2020, 2488, 3110, 4040, 4141, 6220, 8282, 12440, 12751, 16564, 20705, 25502, 31411, 33128, 41410, 51004, 62822, 63755, 82820, 102008, 125644, 127510, 157055, 165640, 251288, 255020, 314110, 510040, 628220, 1256440, 1287851, 2575702, 5151404, 6439255, 10302808, 12878510, 25757020, 51514040]

約数ペア:

[(1, 51514040), (2, 25757020), (4, 12878510), (5, 10302808), (8, 6439255), (10, 5151404), (20, 2575702), (40, 1287851), (41, 1256440), (82, 628220), (101, 510040), (164, 314110), (202, 255020), (205, 251288), (311, 165640), (328, 157055), (404, 127510), (410, 125644), (505, 102008), (622, 82820), (808, 63755), (820, 62822), (1010, 51004), (1244, 41410), (1555, 33128), (1640, 31411), (2020, 25502), (2488, 20705), (3110, 16564), (4040, 12751), (4141, 12440), (6220, 8282)]