3905000

素因数分解:

$2^3\times 5^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1$

素因数の和:108

約数の個数: 80

約数和(自身を含む): 10121760

約数和(自身を除く): 6216760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 71, 88, 100, 110, 125, 142, 200, 220, 250, 275, 284, 355, 440, 500, 550, 568, 625, 710, 781, 1000, 1100, 1250, 1375, 1420, 1562, 1775, 2200, 2500, 2750, 2840, 3124, 3550, 3905, 5000, 5500, 6248, 6875, 7100, 7810, 8875, 11000, 13750, 14200, 15620, 17750, 19525, 27500, 31240, 35500, 39050, 44375, 55000, 71000, 78100, 88750, 97625, 156200, 177500, 195250, 355000, 390500, 488125, 781000, 976250, 1952500, 3905000]

約数ペア:

[(1, 3905000), (2, 1952500), (4, 976250), (5, 781000), (8, 488125), (10, 390500), (11, 355000), (20, 195250), (22, 177500), (25, 156200), (40, 97625), (44, 88750), (50, 78100), (55, 71000), (71, 55000), (88, 44375), (100, 39050), (110, 35500), (125, 31240), (142, 27500), (200, 19525), (220, 17750), (250, 15620), (275, 14200), (284, 13750), (355, 11000), (440, 8875), (500, 7810), (550, 7100), (568, 6875), (625, 6248), (710, 5500), (781, 5000), (1000, 3905), (1100, 3550), (1250, 3124), (1375, 2840), (1420, 2750), (1562, 2500), (1775, 2200)]