8408720

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1181}}^1$

素因数の和:1283

約数の個数: 40

約数和(自身を含む): 19786680

約数和(自身を除く): 11377960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1181, 1424, 1780, 2362, 3560, 4724, 5905, 7120, 9448, 11810, 18896, 23620, 47240, 94480, 105109, 210218, 420436, 525545, 840872, 1051090, 1681744, 2102180, 4204360, 8408720]

約数ペア:

[(1, 8408720), (2, 4204360), (4, 2102180), (5, 1681744), (8, 1051090), (10, 840872), (16, 525545), (20, 420436), (40, 210218), (80, 105109), (89, 94480), (178, 47240), (356, 23620), (445, 18896), (712, 11810), (890, 9448), (1181, 7120), (1424, 5905), (1780, 4724), (2362, 3560)]