256838210

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{883}}^1$

素因数の和:995

約数の個数: 64

約数和(自身を含む): 515548800

約数和(自身を除く): 258710590

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 59, 85, 118, 145, 170, 290, 295, 493, 590, 883, 986, 1003, 1711, 1766, 2006, 2465, 3422, 4415, 4930, 5015, 8555, 8830, 10030, 15011, 17110, 25607, 29087, 30022, 51214, 52097, 58174, 75055, 104194, 128035, 145435, 150110, 256070, 260485, 290870, 435319, 520970, 870638, 885649, 1510813, 1771298, 2176595, 3021626, 4353190, 4428245, 7554065, 8856490, 15108130, 25683821, 51367642, 128419105, 256838210]

約数ペア:

[(1, 256838210), (2, 128419105), (5, 51367642), (10, 25683821), (17, 15108130), (29, 8856490), (34, 7554065), (58, 4428245), (59, 4353190), (85, 3021626), (118, 2176595), (145, 1771298), (170, 1510813), (290, 885649), (295, 870638), (493, 520970), (590, 435319), (883, 290870), (986, 260485), (1003, 256070), (1711, 150110), (1766, 145435), (2006, 128035), (2465, 104194), (3422, 75055), (4415, 58174), (4930, 52097), (5015, 51214), (8555, 30022), (8830, 29087), (10030, 25607), (15011, 17110)]