19997281280

素因数分解:

$2^{10}\times 5^1\times {\mathrm{73}}^1\times {\mathrm{53503}}^1$

素因数の和:53601

約数の個数: 88

約数和(自身を含む): 48628073472

約数和(自身を除く): 28630792192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 128, 146, 160, 256, 292, 320, 365, 512, 584, 640, 730, 1024, 1168, 1280, 1460, 2336, 2560, 2920, 4672, 5120, 5840, 9344, 11680, 18688, 23360, 37376, 46720, 53503, 74752, 93440, 107006, 186880, 214012, 267515, 373760, 428024, 535030, 856048, 1070060, 1712096, 2140120, 3424192, 3905719, 4280240, 6848384, 7811438, 8560480, 13696768, 15622876, 17120960, 19528595, 27393536, 31245752, 34241920, 39057190, 54787072, 62491504, 68483840, 78114380, 124983008, 136967680, 156228760, 249966016, 273935360, 312457520, 499932032, 624915040, 999864064, 1249830080, 1999728128, 2499660160, 3999456256, 4999320320, 9998640640, 19997281280]

約数ペア:

[(1, 19997281280), (2, 9998640640), (4, 4999320320), (5, 3999456256), (8, 2499660160), (10, 1999728128), (16, 1249830080), (20, 999864064), (32, 624915040), (40, 499932032), (64, 312457520), (73, 273935360), (80, 249966016), (128, 156228760), (146, 136967680), (160, 124983008), (256, 78114380), (292, 68483840), (320, 62491504), (365, 54787072), (512, 39057190), (584, 34241920), (640, 31245752), (730, 27393536), (1024, 19528595), (1168, 17120960), (1280, 15622876), (1460, 13696768), (2336, 8560480), (2560, 7811438), (2920, 6848384), (4672, 4280240), (5120, 3905719), (5840, 3424192), (9344, 2140120), (11680, 1712096), (18688, 1070060), (23360, 856048), (37376, 535030), (46720, 428024), (53503, 373760), (74752, 267515), (93440, 214012), (107006, 186880)]