28976720

素因数分解:

$2^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1289}}^1$

素因数の和:1583

約数の個数: 40

約数和(自身を含む): 67663080

約数和(自身を除く): 38686360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281, 562, 1124, 1289, 1405, 2248, 2578, 2810, 4496, 5156, 5620, 6445, 10312, 11240, 12890, 20624, 22480, 25780, 51560, 103120, 362209, 724418, 1448836, 1811045, 2897672, 3622090, 5795344, 7244180, 14488360, 28976720]

約数ペア:

[(1, 28976720), (2, 14488360), (4, 7244180), (5, 5795344), (8, 3622090), (10, 2897672), (16, 1811045), (20, 1448836), (40, 724418), (80, 362209), (281, 103120), (562, 51560), (1124, 25780), (1289, 22480), (1405, 20624), (2248, 12890), (2578, 11240), (2810, 10312), (4496, 6445), (5156, 5620)]