20424970

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1607}}^1$

素因数の和:1686

約数の個数: 32

約数和(自身を含む): 38900736

約数和(自身を除く): 18475766

約数列:

[1, 2, 5, 10, 31, 41, 62, 82, 155, 205, 310, 410, 1271, 1607, 2542, 3214, 6355, 8035, 12710, 16070, 49817, 65887, 99634, 131774, 249085, 329435, 498170, 658870, 2042497, 4084994, 10212485, 20424970]

約数ペア:

[(1, 20424970), (2, 10212485), (5, 4084994), (10, 2042497), (31, 658870), (41, 498170), (62, 329435), (82, 249085), (155, 131774), (205, 99634), (310, 65887), (410, 49817), (1271, 16070), (1607, 12710), (2542, 8035), (3214, 6355)]