19983250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{601}}^1$

素因数の和:644

約数の個数: 64

約数和(自身を含む): 45077760

約数和(自身を除く): 25094510

約数列:

[1, 2, 5, 7, 10, 14, 19, 25, 35, 38, 50, 70, 95, 125, 133, 175, 190, 250, 266, 350, 475, 601, 665, 875, 950, 1202, 1330, 1750, 2375, 3005, 3325, 4207, 4750, 6010, 6650, 8414, 11419, 15025, 16625, 21035, 22838, 30050, 33250, 42070, 57095, 75125, 79933, 105175, 114190, 150250, 159866, 210350, 285475, 399665, 525875, 570950, 799330, 1051750, 1427375, 1998325, 2854750, 3996650, 9991625, 19983250]

約数ペア:

[(1, 19983250), (2, 9991625), (5, 3996650), (7, 2854750), (10, 1998325), (14, 1427375), (19, 1051750), (25, 799330), (35, 570950), (38, 525875), (50, 399665), (70, 285475), (95, 210350), (125, 159866), (133, 150250), (175, 114190), (190, 105175), (250, 79933), (266, 75125), (350, 57095), (475, 42070), (601, 33250), (665, 30050), (875, 22838), (950, 21035), (1202, 16625), (1330, 15025), (1750, 11419), (2375, 8414), (3005, 6650), (3325, 6010), (4207, 4750)]