289689008

素因数分解:

$2^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{25609}}^1$

素因数の和:25725

約数の個数: 40

約数和(自身を含む): 647830560

約数和(自身を除く): 358141552

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 101, 112, 202, 404, 707, 808, 1414, 1616, 2828, 5656, 11312, 25609, 51218, 102436, 179263, 204872, 358526, 409744, 717052, 1434104, 2586509, 2868208, 5173018, 10346036, 18105563, 20692072, 36211126, 41384144, 72422252, 144844504, 289689008]

約数ペア:

[(1, 289689008), (2, 144844504), (4, 72422252), (7, 41384144), (8, 36211126), (14, 20692072), (16, 18105563), (28, 10346036), (56, 5173018), (101, 2868208), (112, 2586509), (202, 1434104), (404, 717052), (707, 409744), (808, 358526), (1414, 204872), (1616, 179263), (2828, 102436), (5656, 51218), (11312, 25609)]