42739000

素因数分解:

$2^3\times 5^3\times {\mathrm{79}}^1\times {\mathrm{541}}^1$

素因数の和:641

約数の個数: 64

約数和(自身を含む): 101462400

約数和(自身を除く): 58723400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 125, 158, 200, 250, 316, 395, 500, 541, 632, 790, 1000, 1082, 1580, 1975, 2164, 2705, 3160, 3950, 4328, 5410, 7900, 9875, 10820, 13525, 15800, 19750, 21640, 27050, 39500, 42739, 54100, 67625, 79000, 85478, 108200, 135250, 170956, 213695, 270500, 341912, 427390, 541000, 854780, 1068475, 1709560, 2136950, 4273900, 5342375, 8547800, 10684750, 21369500, 42739000]

約数ペア:

[(1, 42739000), (2, 21369500), (4, 10684750), (5, 8547800), (8, 5342375), (10, 4273900), (20, 2136950), (25, 1709560), (40, 1068475), (50, 854780), (79, 541000), (100, 427390), (125, 341912), (158, 270500), (200, 213695), (250, 170956), (316, 135250), (395, 108200), (500, 85478), (541, 79000), (632, 67625), (790, 54100), (1000, 42739), (1082, 39500), (1580, 27050), (1975, 21640), (2164, 19750), (2705, 15800), (3160, 13525), (3950, 10820), (4328, 9875), (5410, 7900)]