28415905

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 40550400

約数和(自身を除く): 12134495

約数列:

[1, 5, 7, 35, 43, 79, 215, 239, 301, 395, 553, 1195, 1505, 1673, 2765, 3397, 8365, 10277, 16985, 18881, 23779, 51385, 71939, 94405, 118895, 132167, 359695, 660835, 811883, 4059415, 5683181, 28415905]

約数ペア:

[(1, 28415905), (5, 5683181), (7, 4059415), (35, 811883), (43, 660835), (79, 359695), (215, 132167), (239, 118895), (301, 94405), (395, 71939), (553, 51385), (1195, 23779), (1505, 18881), (1673, 16985), (2765, 10277), (3397, 8365)]