209534480

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{29429}}^1$

素因数の和:29531

約数の個数: 40

約数和(自身を含む): 492658200

約数和(自身を除く): 283123720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 29429, 58858, 117716, 147145, 235432, 294290, 470864, 588580, 1177160, 2354320, 2619181, 5238362, 10476724, 13095905, 20953448, 26191810, 41906896, 52383620, 104767240, 209534480]

約数ペア:

[(1, 209534480), (2, 104767240), (4, 52383620), (5, 41906896), (8, 26191810), (10, 20953448), (16, 13095905), (20, 10476724), (40, 5238362), (80, 2619181), (89, 2354320), (178, 1177160), (356, 588580), (445, 470864), (712, 294290), (890, 235432), (1424, 147145), (1780, 117716), (3560, 58858), (7120, 29429)]