201001720

素因数分解:

$2^3\times 5^1\times {\mathrm{2203}}^1\times {\mathrm{2281}}^1$

素因数の和:4495

約数の個数: 32

約数和(自身を含む): 452657520

約数和(自身を除く): 251655800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2203, 2281, 4406, 4562, 8812, 9124, 11015, 11405, 17624, 18248, 22030, 22810, 44060, 45620, 88120, 91240, 5025043, 10050086, 20100172, 25125215, 40200344, 50250430, 100500860, 201001720]

約数ペア:

[(1, 201001720), (2, 100500860), (4, 50250430), (5, 40200344), (8, 25125215), (10, 20100172), (20, 10050086), (40, 5025043), (2203, 91240), (2281, 88120), (4406, 45620), (4562, 44060), (8812, 22810), (9124, 22030), (11015, 18248), (11405, 17624)]