821154540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{720311}}^1$

素因数の和:720342

約数の個数: 48

約数和(自身を含む): 2420248320

約数和(自身を除く): 1599093780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 720311, 1440622, 2160933, 2881244, 3601555, 4321866, 7203110, 8643732, 10804665, 13685909, 14406220, 21609330, 27371818, 41057727, 43218660, 54743636, 68429545, 82115454, 136859090, 164230908, 205288635, 273718180, 410577270, 821154540]

約数ペア:

[(1, 821154540), (2, 410577270), (3, 273718180), (4, 205288635), (5, 164230908), (6, 136859090), (10, 82115454), (12, 68429545), (15, 54743636), (19, 43218660), (20, 41057727), (30, 27371818), (38, 21609330), (57, 14406220), (60, 13685909), (76, 10804665), (95, 8643732), (114, 7203110), (190, 4321866), (228, 3601555), (285, 2881244), (380, 2160933), (570, 1440622), (1140, 720311)]