720121040

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{310397}}^1$

素因数の和:310439

約数の個数: 40

約数和(自身を含む): 1732020840

約数和(自身を除く): 1011899800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 310397, 620794, 1241588, 1551985, 2483176, 3103970, 4966352, 6207940, 9001513, 12415880, 18003026, 24831760, 36006052, 45007565, 72012104, 90015130, 144024208, 180030260, 360060520, 720121040]

約数ペア:

[(1, 720121040), (2, 360060520), (4, 180030260), (5, 144024208), (8, 90015130), (10, 72012104), (16, 45007565), (20, 36006052), (29, 24831760), (40, 18003026), (58, 12415880), (80, 9001513), (116, 6207940), (145, 4966352), (232, 3103970), (290, 2483176), (464, 1551985), (580, 1241588), (1160, 620794), (2320, 310397)]