1242020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 2984688

約数和(自身を除く): 1742668

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 281, 340, 442, 562, 884, 1105, 1124, 1405, 2210, 2810, 3653, 4420, 4777, 5620, 7306, 9554, 14612, 18265, 19108, 23885, 36530, 47770, 62101, 73060, 95540, 124202, 248404, 310505, 621010, 1242020]

約数ペア:

[(1, 1242020), (2, 621010), (4, 310505), (5, 248404), (10, 124202), (13, 95540), (17, 73060), (20, 62101), (26, 47770), (34, 36530), (52, 23885), (65, 19108), (68, 18265), (85, 14612), (130, 9554), (170, 7306), (221, 5620), (260, 4777), (281, 4420), (340, 3653), (442, 2810), (562, 2210), (884, 1405), (1105, 1124)]