123855440

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{15031}}^1$

素因数の和:15147

約数の個数: 40

約数和(自身を含む): 290779008

約数和(自身を除く): 166923568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 15031, 30062, 60124, 75155, 120248, 150310, 240496, 300620, 601240, 1202480, 1548193, 3096386, 6192772, 7740965, 12385544, 15481930, 24771088, 30963860, 61927720, 123855440]

約数ペア:

[(1, 123855440), (2, 61927720), (4, 30963860), (5, 24771088), (8, 15481930), (10, 12385544), (16, 7740965), (20, 6192772), (40, 3096386), (80, 1548193), (103, 1202480), (206, 601240), (412, 300620), (515, 240496), (824, 150310), (1030, 120248), (1648, 75155), (2060, 60124), (4120, 30062), (8240, 15031)]