490339990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{304559}}^1$

素因数の和:304596

約数の個数: 32

約数和(自身を含む): 1052559360

約数和(自身を除く): 562219370

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610, 304559, 609118, 1522795, 2131913, 3045590, 4263826, 7004857, 10659565, 14009714, 21319130, 35024285, 49033999, 70048570, 98067998, 245169995, 490339990]

約数ペア:

[(1, 490339990), (2, 245169995), (5, 98067998), (7, 70048570), (10, 49033999), (14, 35024285), (23, 21319130), (35, 14009714), (46, 10659565), (70, 7004857), (115, 4263826), (161, 3045590), (230, 2131913), (322, 1522795), (805, 609118), (1610, 304559)]