27789640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{307}}^1$

素因数の和:422

約数の個数: 64

約数和(自身を含む): 65640960

約数和(自身を除く): 37851320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 73, 124, 146, 155, 248, 292, 307, 310, 365, 584, 614, 620, 730, 1228, 1240, 1460, 1535, 2263, 2456, 2920, 3070, 4526, 6140, 9052, 9517, 11315, 12280, 18104, 19034, 22411, 22630, 38068, 44822, 45260, 47585, 76136, 89644, 90520, 95170, 112055, 179288, 190340, 224110, 380680, 448220, 694741, 896440, 1389482, 2778964, 3473705, 5557928, 6947410, 13894820, 27789640]

約数ペア:

[(1, 27789640), (2, 13894820), (4, 6947410), (5, 5557928), (8, 3473705), (10, 2778964), (20, 1389482), (31, 896440), (40, 694741), (62, 448220), (73, 380680), (124, 224110), (146, 190340), (155, 179288), (248, 112055), (292, 95170), (307, 90520), (310, 89644), (365, 76136), (584, 47585), (614, 45260), (620, 44822), (730, 38068), (1228, 22630), (1240, 22411), (1460, 19034), (1535, 18104), (2263, 12280), (2456, 11315), (2920, 9517), (3070, 9052), (4526, 6140)]