20724720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86353}}^1$

素因数の和:86369

約数の個数: 40

約数和(自身を含む): 64247376

約数和(自身を除く): 43522656

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86353, 172706, 259059, 345412, 431765, 518118, 690824, 863530, 1036236, 1295295, 1381648, 1727060, 2072472, 2590590, 3454120, 4144944, 5181180, 6908240, 10362360, 20724720]

約数ペア:

[(1, 20724720), (2, 10362360), (3, 6908240), (4, 5181180), (5, 4144944), (6, 3454120), (8, 2590590), (10, 2072472), (12, 1727060), (15, 1381648), (16, 1295295), (20, 1036236), (24, 863530), (30, 690824), (40, 518118), (48, 431765), (60, 345412), (80, 259059), (120, 172706), (240, 86353)]