19852700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{359}}^1$

素因数の和:459

約数の個数: 72

約数和(自身を含む): 49996800

約数和(自身を除く): 30144100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 79, 100, 140, 158, 175, 316, 350, 359, 395, 553, 700, 718, 790, 1106, 1436, 1580, 1795, 1975, 2212, 2513, 2765, 3590, 3950, 5026, 5530, 7180, 7900, 8975, 10052, 11060, 12565, 13825, 17950, 25130, 27650, 28361, 35900, 50260, 55300, 56722, 62825, 113444, 125650, 141805, 198527, 251300, 283610, 397054, 567220, 709025, 794108, 992635, 1418050, 1985270, 2836100, 3970540, 4963175, 9926350, 19852700]

約数ペア:

[(1, 19852700), (2, 9926350), (4, 4963175), (5, 3970540), (7, 2836100), (10, 1985270), (14, 1418050), (20, 992635), (25, 794108), (28, 709025), (35, 567220), (50, 397054), (70, 283610), (79, 251300), (100, 198527), (140, 141805), (158, 125650), (175, 113444), (316, 62825), (350, 56722), (359, 55300), (395, 50260), (553, 35900), (700, 28361), (718, 27650), (790, 25130), (1106, 17950), (1436, 13825), (1580, 12565), (1795, 11060), (1975, 10052), (2212, 8975), (2513, 7900), (2765, 7180), (3590, 5530), (3950, 5026)]