20377424

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3943}}^1$

素因数の和:3987

約数の個数: 40

約数和(自身を含む): 44015040

約数和(自身を除く): 23637616

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 3943, 5168, 7886, 15772, 31544, 63088, 67031, 74917, 134062, 149834, 268124, 299668, 536248, 599336, 1072496, 1198672, 1273589, 2547178, 5094356, 10188712, 20377424]

約数ペア:

[(1, 20377424), (2, 10188712), (4, 5094356), (8, 2547178), (16, 1273589), (17, 1198672), (19, 1072496), (34, 599336), (38, 536248), (68, 299668), (76, 268124), (136, 149834), (152, 134062), (272, 74917), (304, 67031), (323, 63088), (646, 31544), (1292, 15772), (2584, 7886), (3943, 5168)]