2021457800

素因数分解:

$2^3\times 5^2\times {\mathrm{281}}^1\times {\mathrm{35969}}^1$

素因数の和:36266

約数の個数: 48

約数和(自身を含む): 4716746100

約数和(自身を除く): 2695288300

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 281, 562, 1124, 1405, 2248, 2810, 5620, 7025, 11240, 14050, 28100, 35969, 56200, 71938, 143876, 179845, 287752, 359690, 719380, 899225, 1438760, 1798450, 3596900, 7193800, 10107289, 20214578, 40429156, 50536445, 80858312, 101072890, 202145780, 252682225, 404291560, 505364450, 1010728900, 2021457800]

約数ペア:

[(1, 2021457800), (2, 1010728900), (4, 505364450), (5, 404291560), (8, 252682225), (10, 202145780), (20, 101072890), (25, 80858312), (40, 50536445), (50, 40429156), (100, 20214578), (200, 10107289), (281, 7193800), (562, 3596900), (1124, 1798450), (1405, 1438760), (2248, 899225), (2810, 719380), (5620, 359690), (7025, 287752), (11240, 179845), (14050, 143876), (28100, 71938), (35969, 56200)]