19220000

素因数分解:

$2^5\times 5^4\times {\mathrm{31}}^2$

素因数の和:92

約数の個数: 90

約数和(自身を含む): 48858579

約数和(自身を除く): 29638579

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 124, 125, 155, 160, 200, 248, 250, 310, 400, 496, 500, 620, 625, 775, 800, 961, 992, 1000, 1240, 1250, 1550, 1922, 2000, 2480, 2500, 3100, 3844, 3875, 4000, 4805, 4960, 5000, 6200, 7688, 7750, 9610, 10000, 12400, 15376, 15500, 19220, 19375, 20000, 24025, 24800, 30752, 31000, 38440, 38750, 48050, 62000, 76880, 77500, 96100, 120125, 124000, 153760, 155000, 192200, 240250, 310000, 384400, 480500, 600625, 620000, 768800, 961000, 1201250, 1922000, 2402500, 3844000, 4805000, 9610000, 19220000]

約数ペア:

[(1, 19220000), (2, 9610000), (4, 4805000), (5, 3844000), (8, 2402500), (10, 1922000), (16, 1201250), (20, 961000), (25, 768800), (31, 620000), (32, 600625), (40, 480500), (50, 384400), (62, 310000), (80, 240250), (100, 192200), (124, 155000), (125, 153760), (155, 124000), (160, 120125), (200, 96100), (248, 77500), (250, 76880), (310, 62000), (400, 48050), (496, 38750), (500, 38440), (620, 31000), (625, 30752), (775, 24800), (800, 24025), (961, 20000), (992, 19375), (1000, 19220), (1240, 15500), (1250, 15376), (1550, 12400), (1922, 10000), (2000, 9610), (2480, 7750), (2500, 7688), (3100, 6200), (3844, 5000), (3875, 4960), (4000, 4805)]