28190490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^3\times {\mathrm{137}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 71936640

約数和(自身を除く): 43746150

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 137, 190, 274, 285, 361, 411, 570, 685, 722, 822, 1083, 1370, 1805, 2055, 2166, 2603, 3610, 4110, 5206, 5415, 6859, 7809, 10830, 13015, 13718, 15618, 20577, 26030, 34295, 39045, 41154, 49457, 68590, 78090, 98914, 102885, 148371, 205770, 247285, 296742, 494570, 741855, 939683, 1483710, 1879366, 2819049, 4698415, 5638098, 9396830, 14095245, 28190490]

約数ペア:

[(1, 28190490), (2, 14095245), (3, 9396830), (5, 5638098), (6, 4698415), (10, 2819049), (15, 1879366), (19, 1483710), (30, 939683), (38, 741855), (57, 494570), (95, 296742), (114, 247285), (137, 205770), (190, 148371), (274, 102885), (285, 98914), (361, 78090), (411, 68590), (570, 49457), (685, 41154), (722, 39045), (822, 34295), (1083, 26030), (1370, 20577), (1805, 15618), (2055, 13718), (2166, 13015), (2603, 10830), (3610, 7809), (4110, 6859), (5206, 5415)]