21458280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178819}}^1$

素因数の和:178833

約数の個数: 32

約数和(自身を含む): 64375200

約数和(自身を除く): 42916920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178819, 357638, 536457, 715276, 894095, 1072914, 1430552, 1788190, 2145828, 2682285, 3576380, 4291656, 5364570, 7152760, 10729140, 21458280]

約数ペア:

[(1, 21458280), (2, 10729140), (3, 7152760), (4, 5364570), (5, 4291656), (6, 3576380), (8, 2682285), (10, 2145828), (12, 1788190), (15, 1430552), (20, 1072914), (24, 894095), (30, 715276), (40, 536457), (60, 357638), (120, 178819)]