261067040

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{401}}^1$

素因数の和:742

約数の個数: 96

約数和(自身を含む): 667998576

約数和(自身を除く): 406931536

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 313, 401, 416, 520, 626, 802, 1040, 1252, 1565, 1604, 2005, 2080, 2504, 3130, 3208, 4010, 4069, 5008, 5213, 6260, 6416, 8020, 8138, 10016, 10426, 12520, 12832, 16040, 16276, 20345, 20852, 25040, 26065, 32080, 32552, 40690, 41704, 50080, 52130, 64160, 65104, 81380, 83408, 104260, 125513, 130208, 162760, 166816, 208520, 251026, 325520, 417040, 502052, 627565, 651040, 834080, 1004104, 1255130, 1631669, 2008208, 2510260, 3263338, 4016416, 5020520, 6526676, 8158345, 10041040, 13053352, 16316690, 20082080, 26106704, 32633380, 52213408, 65266760, 130533520, 261067040]

約数ペア:

[(1, 261067040), (2, 130533520), (4, 65266760), (5, 52213408), (8, 32633380), (10, 26106704), (13, 20082080), (16, 16316690), (20, 13053352), (26, 10041040), (32, 8158345), (40, 6526676), (52, 5020520), (65, 4016416), (80, 3263338), (104, 2510260), (130, 2008208), (160, 1631669), (208, 1255130), (260, 1004104), (313, 834080), (401, 651040), (416, 627565), (520, 502052), (626, 417040), (802, 325520), (1040, 251026), (1252, 208520), (1565, 166816), (1604, 162760), (2005, 130208), (2080, 125513), (2504, 104260), (3130, 83408), (3208, 81380), (4010, 65104), (4069, 64160), (5008, 52130), (5213, 50080), (6260, 41704), (6416, 40690), (8020, 32552), (8138, 32080), (10016, 26065), (10426, 25040), (12520, 20852), (12832, 20345), (16040, 16276)]