20877124

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 40279680

約数和(自身を除く): 19402556

約数列:

[1, 2, 4, 19, 38, 53, 71, 73, 76, 106, 142, 146, 212, 284, 292, 1007, 1349, 1387, 2014, 2698, 2774, 3763, 3869, 4028, 5183, 5396, 5548, 7526, 7738, 10366, 15052, 15476, 20732, 71497, 73511, 98477, 142994, 147022, 196954, 274699, 285988, 294044, 393908, 549398, 1098796, 5219281, 10438562, 20877124]

約数ペア:

[(1, 20877124), (2, 10438562), (4, 5219281), (19, 1098796), (38, 549398), (53, 393908), (71, 294044), (73, 285988), (76, 274699), (106, 196954), (142, 147022), (146, 142994), (212, 98477), (284, 73511), (292, 71497), (1007, 20732), (1349, 15476), (1387, 15052), (2014, 10366), (2698, 7738), (2774, 7526), (3763, 5548), (3869, 5396), (4028, 5183)]