79988600

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 194451840

約数和(自身を除く): 114463240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 71, 86, 100, 131, 142, 172, 200, 215, 262, 284, 344, 355, 430, 524, 568, 655, 710, 860, 1048, 1075, 1310, 1420, 1720, 1775, 2150, 2620, 2840, 3053, 3275, 3550, 4300, 5240, 5633, 6106, 6550, 7100, 8600, 9301, 11266, 12212, 13100, 14200, 15265, 18602, 22532, 24424, 26200, 28165, 30530, 37204, 45064, 46505, 56330, 61060, 74408, 76325, 93010, 112660, 122120, 140825, 152650, 186020, 225320, 232525, 281650, 305300, 372040, 399943, 465050, 563300, 610600, 799886, 930100, 1126600, 1599772, 1860200, 1999715, 3199544, 3999430, 7998860, 9998575, 15997720, 19997150, 39994300, 79988600]

約数ペア:

[(1, 79988600), (2, 39994300), (4, 19997150), (5, 15997720), (8, 9998575), (10, 7998860), (20, 3999430), (25, 3199544), (40, 1999715), (43, 1860200), (50, 1599772), (71, 1126600), (86, 930100), (100, 799886), (131, 610600), (142, 563300), (172, 465050), (200, 399943), (215, 372040), (262, 305300), (284, 281650), (344, 232525), (355, 225320), (430, 186020), (524, 152650), (568, 140825), (655, 122120), (710, 112660), (860, 93010), (1048, 76325), (1075, 74408), (1310, 61060), (1420, 56330), (1720, 46505), (1775, 45064), (2150, 37204), (2620, 30530), (2840, 28165), (3053, 26200), (3275, 24424), (3550, 22532), (4300, 18602), (5240, 15265), (5633, 14200), (6106, 13100), (6550, 12212), (7100, 11266), (8600, 9301)]