2011280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{811}}^1$

素因数の和:855

約数の個数: 40

約数和(自身を含む): 4833024

約数和(自身を除く): 2821744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 811, 1240, 1622, 2480, 3244, 4055, 6488, 8110, 12976, 16220, 25141, 32440, 50282, 64880, 100564, 125705, 201128, 251410, 402256, 502820, 1005640, 2011280]

約数ペア:

[(1, 2011280), (2, 1005640), (4, 502820), (5, 402256), (8, 251410), (10, 201128), (16, 125705), (20, 100564), (31, 64880), (40, 50282), (62, 32440), (80, 25141), (124, 16220), (155, 12976), (248, 8110), (310, 6488), (496, 4055), (620, 3244), (811, 2480), (1240, 1622)]