15720828

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^3\times {\mathrm{191}}^1$

素因数の和:255

約数の個数: 48

約数和(自身を含む): 38922240

約数和(自身を除く): 23201412

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 191, 228, 361, 382, 573, 722, 764, 1083, 1146, 1444, 2166, 2292, 3629, 4332, 6859, 7258, 10887, 13718, 14516, 20577, 21774, 27436, 41154, 43548, 68951, 82308, 137902, 206853, 275804, 413706, 827412, 1310069, 2620138, 3930207, 5240276, 7860414, 15720828]

約数ペア:

[(1, 15720828), (2, 7860414), (3, 5240276), (4, 3930207), (6, 2620138), (12, 1310069), (19, 827412), (38, 413706), (57, 275804), (76, 206853), (114, 137902), (191, 82308), (228, 68951), (361, 43548), (382, 41154), (573, 27436), (722, 21774), (764, 20577), (1083, 14516), (1146, 13718), (1444, 10887), (2166, 7258), (2292, 6859), (3629, 4332)]