21232500

素因数分解:

$2^2\times 3^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{149}}^1$

素因数の和:195

約数の個数: 120

約数和(自身を含む): 65604000

約数和(自身を除く): 44371500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 25, 30, 38, 50, 57, 60, 75, 76, 95, 100, 114, 125, 149, 150, 190, 228, 250, 285, 298, 300, 375, 380, 447, 475, 500, 570, 596, 625, 745, 750, 894, 950, 1140, 1250, 1425, 1490, 1500, 1788, 1875, 1900, 2235, 2375, 2500, 2831, 2850, 2980, 3725, 3750, 4470, 4750, 5662, 5700, 7125, 7450, 7500, 8493, 8940, 9500, 11175, 11324, 11875, 14155, 14250, 14900, 16986, 18625, 22350, 23750, 28310, 28500, 33972, 35625, 37250, 42465, 44700, 47500, 55875, 56620, 70775, 71250, 74500, 84930, 93125, 111750, 141550, 142500, 169860, 186250, 212325, 223500, 279375, 283100, 353875, 372500, 424650, 558750, 707750, 849300, 1061625, 1117500, 1415500, 1769375, 2123250, 3538750, 4246500, 5308125, 7077500, 10616250, 21232500]

約数ペア:

[(1, 21232500), (2, 10616250), (3, 7077500), (4, 5308125), (5, 4246500), (6, 3538750), (10, 2123250), (12, 1769375), (15, 1415500), (19, 1117500), (20, 1061625), (25, 849300), (30, 707750), (38, 558750), (50, 424650), (57, 372500), (60, 353875), (75, 283100), (76, 279375), (95, 223500), (100, 212325), (114, 186250), (125, 169860), (149, 142500), (150, 141550), (190, 111750), (228, 93125), (250, 84930), (285, 74500), (298, 71250), (300, 70775), (375, 56620), (380, 55875), (447, 47500), (475, 44700), (500, 42465), (570, 37250), (596, 35625), (625, 33972), (745, 28500), (750, 28310), (894, 23750), (950, 22350), (1140, 18625), (1250, 16986), (1425, 14900), (1490, 14250), (1500, 14155), (1788, 11875), (1875, 11324), (1900, 11175), (2235, 9500), (2375, 8940), (2500, 8493), (2831, 7500), (2850, 7450), (2980, 7125), (3725, 5700), (3750, 5662), (4470, 4750)]