19867400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{617}}^1$

素因数の和:663

約数の個数: 96

約数和(自身を含む): 55175040

約数和(自身を除く): 35307640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 25, 28, 35, 40, 46, 50, 56, 70, 92, 100, 115, 140, 161, 175, 184, 200, 230, 280, 322, 350, 460, 575, 617, 644, 700, 805, 920, 1150, 1234, 1288, 1400, 1610, 2300, 2468, 3085, 3220, 4025, 4319, 4600, 4936, 6170, 6440, 8050, 8638, 12340, 14191, 15425, 16100, 17276, 21595, 24680, 28382, 30850, 32200, 34552, 43190, 56764, 61700, 70955, 86380, 99337, 107975, 113528, 123400, 141910, 172760, 198674, 215950, 283820, 354775, 397348, 431900, 496685, 567640, 709550, 794696, 863800, 993370, 1419100, 1986740, 2483425, 2838200, 3973480, 4966850, 9933700, 19867400]

約数ペア:

[(1, 19867400), (2, 9933700), (4, 4966850), (5, 3973480), (7, 2838200), (8, 2483425), (10, 1986740), (14, 1419100), (20, 993370), (23, 863800), (25, 794696), (28, 709550), (35, 567640), (40, 496685), (46, 431900), (50, 397348), (56, 354775), (70, 283820), (92, 215950), (100, 198674), (115, 172760), (140, 141910), (161, 123400), (175, 113528), (184, 107975), (200, 99337), (230, 86380), (280, 70955), (322, 61700), (350, 56764), (460, 43190), (575, 34552), (617, 32200), (644, 30850), (700, 28382), (805, 24680), (920, 21595), (1150, 17276), (1234, 16100), (1288, 15425), (1400, 14191), (1610, 12340), (2300, 8638), (2468, 8050), (3085, 6440), (3220, 6170), (4025, 4936), (4319, 4600)]