40720360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32839}}^1$

素因数の和:32881

約数の個数: 32

約数和(自身を含む): 94579200

約数和(自身を除く): 53858840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 32839, 65678, 131356, 164195, 262712, 328390, 656780, 1018009, 1313560, 2036018, 4072036, 5090045, 8144072, 10180090, 20360180, 40720360]

約数ペア:

[(1, 40720360), (2, 20360180), (4, 10180090), (5, 8144072), (8, 5090045), (10, 4072036), (20, 2036018), (31, 1313560), (40, 1018009), (62, 656780), (124, 328390), (155, 262712), (248, 164195), (310, 131356), (620, 65678), (1240, 32839)]