20205512

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{433}}^1$

素因数の和:765

約数の個数: 32

約数和(自身を含む): 40101600

約数和(自身を除く): 19896088

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 307, 433, 614, 866, 1228, 1732, 2456, 3464, 5833, 8227, 11666, 16454, 23332, 32908, 46664, 65816, 132931, 265862, 531724, 1063448, 2525689, 5051378, 10102756, 20205512]

約数ペア:

[(1, 20205512), (2, 10102756), (4, 5051378), (8, 2525689), (19, 1063448), (38, 531724), (76, 265862), (152, 132931), (307, 65816), (433, 46664), (614, 32908), (866, 23332), (1228, 16454), (1732, 11666), (2456, 8227), (3464, 5833)]