2810000

素因数分解:

$2^4\times 5^4\times {\mathrm{281}}^1$

素因数の和:309

約数の個数: 50

約数和(自身を含む): 6827502

約数和(自身を除く): 4017502

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 281, 400, 500, 562, 625, 1000, 1124, 1250, 1405, 2000, 2248, 2500, 2810, 4496, 5000, 5620, 7025, 10000, 11240, 14050, 22480, 28100, 35125, 56200, 70250, 112400, 140500, 175625, 281000, 351250, 562000, 702500, 1405000, 2810000]

約数ペア:

[(1, 2810000), (2, 1405000), (4, 702500), (5, 562000), (8, 351250), (10, 281000), (16, 175625), (20, 140500), (25, 112400), (40, 70250), (50, 56200), (80, 35125), (100, 28100), (125, 22480), (200, 14050), (250, 11240), (281, 10000), (400, 7025), (500, 5620), (562, 5000), (625, 4496), (1000, 2810), (1124, 2500), (1250, 2248), (1405, 2000)]