20984100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{113}}^1\times {\mathrm{619}}^1$

素因数の和:749

約数の個数: 72

約数和(自身を含む): 61350240

約数和(自身を除く): 40366140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 113, 150, 226, 300, 339, 452, 565, 619, 678, 1130, 1238, 1356, 1695, 1857, 2260, 2476, 2825, 3095, 3390, 3714, 5650, 6190, 6780, 7428, 8475, 9285, 11300, 12380, 15475, 16950, 18570, 30950, 33900, 37140, 46425, 61900, 69947, 92850, 139894, 185700, 209841, 279788, 349735, 419682, 699470, 839364, 1049205, 1398940, 1748675, 2098410, 3497350, 4196820, 5246025, 6994700, 10492050, 20984100]

約数ペア:

[(1, 20984100), (2, 10492050), (3, 6994700), (4, 5246025), (5, 4196820), (6, 3497350), (10, 2098410), (12, 1748675), (15, 1398940), (20, 1049205), (25, 839364), (30, 699470), (50, 419682), (60, 349735), (75, 279788), (100, 209841), (113, 185700), (150, 139894), (226, 92850), (300, 69947), (339, 61900), (452, 46425), (565, 37140), (619, 33900), (678, 30950), (1130, 18570), (1238, 16950), (1356, 15475), (1695, 12380), (1857, 11300), (2260, 9285), (2476, 8475), (2825, 7428), (3095, 6780), (3390, 6190), (3714, 5650)]