20153249920

素因数分解:

$2^7\times 5^1\times {\mathrm{83}}^1\times {\mathrm{379391}}^1$

素因数の和:379493

約数の個数: 64

約数和(自身を含む): 48759459840

約数和(自身を除く): 28606209920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 128, 160, 166, 320, 332, 415, 640, 664, 830, 1328, 1660, 2656, 3320, 5312, 6640, 10624, 13280, 26560, 53120, 379391, 758782, 1517564, 1896955, 3035128, 3793910, 6070256, 7587820, 12140512, 15175640, 24281024, 30351280, 31489453, 48562048, 60702560, 62978906, 121405120, 125957812, 157447265, 242810240, 251915624, 314894530, 503831248, 629789060, 1007662496, 1259578120, 2015324992, 2519156240, 4030649984, 5038312480, 10076624960, 20153249920]

約数ペア:

[(1, 20153249920), (2, 10076624960), (4, 5038312480), (5, 4030649984), (8, 2519156240), (10, 2015324992), (16, 1259578120), (20, 1007662496), (32, 629789060), (40, 503831248), (64, 314894530), (80, 251915624), (83, 242810240), (128, 157447265), (160, 125957812), (166, 121405120), (320, 62978906), (332, 60702560), (415, 48562048), (640, 31489453), (664, 30351280), (830, 24281024), (1328, 15175640), (1660, 12140512), (2656, 7587820), (3320, 6070256), (5312, 3793910), (6640, 3035128), (10624, 1896955), (13280, 1517564), (26560, 758782), (53120, 379391)]