390500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1$

素因数の和:101

約数の個数: 48

約数和(自身を含む): 943488

約数和(自身を除く): 552988

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 71, 100, 110, 125, 142, 220, 250, 275, 284, 355, 500, 550, 710, 781, 1100, 1375, 1420, 1562, 1775, 2750, 3124, 3550, 3905, 5500, 7100, 7810, 8875, 15620, 17750, 19525, 35500, 39050, 78100, 97625, 195250, 390500]

約数ペア:

[(1, 390500), (2, 195250), (4, 97625), (5, 78100), (10, 39050), (11, 35500), (20, 19525), (22, 17750), (25, 15620), (44, 8875), (50, 7810), (55, 7100), (71, 5500), (100, 3905), (110, 3550), (125, 3124), (142, 2750), (220, 1775), (250, 1562), (275, 1420), (284, 1375), (355, 1100), (500, 781), (550, 710)]