27821990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1663}}^1$

素因数の和:1916

約数の個数: 32

約数和(自身を含む): 57507840

約数和(自身を除く): 29685850

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 239, 478, 1195, 1663, 1673, 2390, 3326, 3346, 8315, 8365, 11641, 16630, 16730, 23282, 58205, 116410, 397457, 794914, 1987285, 2782199, 3974570, 5564398, 13910995, 27821990]

約数ペア:

[(1, 27821990), (2, 13910995), (5, 5564398), (7, 3974570), (10, 2782199), (14, 1987285), (35, 794914), (70, 397457), (239, 116410), (478, 58205), (1195, 23282), (1663, 16730), (1673, 16630), (2390, 11641), (3326, 8365), (3346, 8315)]