25281040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{641}}^1$

素因数の和:700

約数の個数: 80

約数和(自身を含む): 64482480

約数和(自身を除く): 39201440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 34, 40, 58, 68, 80, 85, 116, 136, 145, 170, 232, 272, 290, 340, 464, 493, 580, 641, 680, 986, 1160, 1282, 1360, 1972, 2320, 2465, 2564, 3205, 3944, 4930, 5128, 6410, 7888, 9860, 10256, 10897, 12820, 18589, 19720, 21794, 25640, 37178, 39440, 43588, 51280, 54485, 74356, 87176, 92945, 108970, 148712, 174352, 185890, 217940, 297424, 316013, 371780, 435880, 632026, 743560, 871760, 1264052, 1487120, 1580065, 2528104, 3160130, 5056208, 6320260, 12640520, 25281040]

約数ペア:

[(1, 25281040), (2, 12640520), (4, 6320260), (5, 5056208), (8, 3160130), (10, 2528104), (16, 1580065), (17, 1487120), (20, 1264052), (29, 871760), (34, 743560), (40, 632026), (58, 435880), (68, 371780), (80, 316013), (85, 297424), (116, 217940), (136, 185890), (145, 174352), (170, 148712), (232, 108970), (272, 92945), (290, 87176), (340, 74356), (464, 54485), (493, 51280), (580, 43588), (641, 39440), (680, 37178), (986, 25640), (1160, 21794), (1282, 19720), (1360, 18589), (1972, 12820), (2320, 10897), (2465, 10256), (2564, 9860), (3205, 7888), (3944, 6410), (4930, 5128)]