20665064

素因数分解:

$2^3\times 7^3\times {\mathrm{17}}^1\times {\mathrm{443}}^1$

素因数の和:487

約数の個数: 64

約数和(自身を含む): 47952000

約数和(自身を除く): 27286936

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 56, 68, 98, 119, 136, 196, 238, 343, 392, 443, 476, 686, 833, 886, 952, 1372, 1666, 1772, 2744, 3101, 3332, 3544, 5831, 6202, 6664, 7531, 11662, 12404, 15062, 21707, 23324, 24808, 30124, 43414, 46648, 52717, 60248, 86828, 105434, 151949, 173656, 210868, 303898, 369019, 421736, 607796, 738038, 1215592, 1476076, 2583133, 2952152, 5166266, 10332532, 20665064]

約数ペア:

[(1, 20665064), (2, 10332532), (4, 5166266), (7, 2952152), (8, 2583133), (14, 1476076), (17, 1215592), (28, 738038), (34, 607796), (49, 421736), (56, 369019), (68, 303898), (98, 210868), (119, 173656), (136, 151949), (196, 105434), (238, 86828), (343, 60248), (392, 52717), (443, 46648), (476, 43414), (686, 30124), (833, 24808), (886, 23324), (952, 21707), (1372, 15062), (1666, 12404), (1772, 11662), (2744, 7531), (3101, 6664), (3332, 6202), (3544, 5831)]