109990020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{261881}}^1$

素因数の和:261900

約数の個数: 48

約数和(自身を含む): 351969408

約数和(自身を除く): 241979388

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 261881, 523762, 785643, 1047524, 1309405, 1571286, 1833167, 2618810, 3142572, 3666334, 3928215, 5237620, 5499501, 7332668, 7856430, 9165835, 10999002, 15712860, 18331670, 21998004, 27497505, 36663340, 54995010, 109990020]

約数ペア:

[(1, 109990020), (2, 54995010), (3, 36663340), (4, 27497505), (5, 21998004), (6, 18331670), (7, 15712860), (10, 10999002), (12, 9165835), (14, 7856430), (15, 7332668), (20, 5499501), (21, 5237620), (28, 3928215), (30, 3666334), (35, 3142572), (42, 2618810), (60, 1833167), (70, 1571286), (84, 1309405), (105, 1047524), (140, 785643), (210, 523762), (420, 261881)]