17788720

素因数分解:

$2^4\times 5^1\times {\mathrm{229}}^1\times {\mathrm{971}}^1$

素因数の和:1213

約数の個数: 40

約数和(自身を含む): 41582160

約数和(自身を除く): 23793440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 229, 458, 916, 971, 1145, 1832, 1942, 2290, 3664, 3884, 4580, 4855, 7768, 9160, 9710, 15536, 18320, 19420, 38840, 77680, 222359, 444718, 889436, 1111795, 1778872, 2223590, 3557744, 4447180, 8894360, 17788720]

約数ペア:

[(1, 17788720), (2, 8894360), (4, 4447180), (5, 3557744), (8, 2223590), (10, 1778872), (16, 1111795), (20, 889436), (40, 444718), (80, 222359), (229, 77680), (458, 38840), (916, 19420), (971, 18320), (1145, 15536), (1832, 9710), (1942, 9160), (2290, 7768), (3664, 4855), (3884, 4580)]