20512395952

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{16301}}^1$

素因数の和:16442

約数の個数: 80

約数和(自身を含む): 42692981760

約数和(自身を除く): 22180585808

約数列:

[1, 2, 4, 8, 16, 31, 43, 59, 62, 86, 118, 124, 172, 236, 248, 344, 472, 496, 688, 944, 1333, 1829, 2537, 2666, 3658, 5074, 5332, 7316, 10148, 10664, 14632, 16301, 20296, 21328, 29264, 32602, 40592, 65204, 78647, 130408, 157294, 260816, 314588, 505331, 629176, 700943, 961759, 1010662, 1258352, 1401886, 1923518, 2021324, 2803772, 3847036, 4042648, 5607544, 7694072, 8085296, 11215088, 15388144, 21729233, 29814529, 41355637, 43458466, 59629058, 82711274, 86916932, 119258116, 165422548, 173833864, 238516232, 330845096, 347667728, 477032464, 661690192, 1282024747, 2564049494, 5128098988, 10256197976, 20512395952]

約数ペア:

[(1, 20512395952), (2, 10256197976), (4, 5128098988), (8, 2564049494), (16, 1282024747), (31, 661690192), (43, 477032464), (59, 347667728), (62, 330845096), (86, 238516232), (118, 173833864), (124, 165422548), (172, 119258116), (236, 86916932), (248, 82711274), (344, 59629058), (472, 43458466), (496, 41355637), (688, 29814529), (944, 21729233), (1333, 15388144), (1829, 11215088), (2537, 8085296), (2666, 7694072), (3658, 5607544), (5074, 4042648), (5332, 3847036), (7316, 2803772), (10148, 2021324), (10664, 1923518), (14632, 1401886), (16301, 1258352), (20296, 1010662), (21328, 961759), (29264, 700943), (32602, 629176), (40592, 505331), (65204, 314588), (78647, 260816), (130408, 157294)]