21205920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{44179}}^1$

素因数の和:44197

約数の個数: 48

約数和(自身を含む): 66800160

約数和(自身を除く): 45594240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 44179, 88358, 132537, 176716, 220895, 265074, 353432, 441790, 530148, 662685, 706864, 883580, 1060296, 1325370, 1413728, 1767160, 2120592, 2650740, 3534320, 4241184, 5301480, 7068640, 10602960, 21205920]

約数ペア:

[(1, 21205920), (2, 10602960), (3, 7068640), (4, 5301480), (5, 4241184), (6, 3534320), (8, 2650740), (10, 2120592), (12, 1767160), (15, 1413728), (16, 1325370), (20, 1060296), (24, 883580), (30, 706864), (32, 662685), (40, 530148), (48, 441790), (60, 353432), (80, 265074), (96, 220895), (120, 176716), (160, 132537), (240, 88358), (480, 44179)]