19525000

素因数分解:

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

素因数の和:113

約数の個数: 96

約数和(自身を含む): 50621760

約数和(自身を除く): 31096760

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, 3125, 3550, 3905, 5000, 5500, 6248, 6250, 6875, 7100, 7810, 8875, 11000, 12500, 13750, 14200, 15620, 17750, 19525, 25000, 27500, 31240, 34375, 35500, 39050, 44375, 55000, 68750, 71000, 78100, 88750, 97625, 137500, 156200, 177500, 195250, 221875, 275000, 355000, 390500, 443750, 488125, 781000, 887500, 976250, 1775000, 1952500, 2440625, 3905000, 4881250, 9762500, 19525000]

約数ペア:

[(1, 19525000), (2, 9762500), (4, 4881250), (5, 3905000), (8, 2440625), (10, 1952500), (11, 1775000), (20, 976250), (22, 887500), (25, 781000), (40, 488125), (44, 443750), (50, 390500), (55, 355000), (71, 275000), (88, 221875), (100, 195250), (110, 177500), (125, 156200), (142, 137500), (200, 97625), (220, 88750), (250, 78100), (275, 71000), (284, 68750), (355, 55000), (440, 44375), (500, 39050), (550, 35500), (568, 34375), (625, 31240), (710, 27500), (781, 25000), (1000, 19525), (1100, 17750), (1250, 15620), (1375, 14200), (1420, 13750), (1562, 12500), (1775, 11000), (2200, 8875), (2500, 7810), (2750, 7100), (2840, 6875), (3124, 6250), (3125, 6248), (3550, 5500), (3905, 5000)]