168419780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{1087}}^1$

素因数の和:1284

約数の個数: 48

約数和(自身を含む): 362643456

約数和(自身を除く): 194223676

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 127, 244, 254, 305, 508, 610, 635, 1087, 1220, 1270, 2174, 2540, 4348, 5435, 7747, 10870, 15494, 21740, 30988, 38735, 66307, 77470, 132614, 138049, 154940, 265228, 276098, 331535, 552196, 663070, 690245, 1326140, 1380490, 2760980, 8420989, 16841978, 33683956, 42104945, 84209890, 168419780]

約数ペア:

[(1, 168419780), (2, 84209890), (4, 42104945), (5, 33683956), (10, 16841978), (20, 8420989), (61, 2760980), (122, 1380490), (127, 1326140), (244, 690245), (254, 663070), (305, 552196), (508, 331535), (610, 276098), (635, 265228), (1087, 154940), (1220, 138049), (1270, 132614), (2174, 77470), (2540, 66307), (4348, 38735), (5435, 30988), (7747, 21740), (10870, 15494)]