31810000

素因数分解:

$2^4\times 5^4\times {\mathrm{3181}}^1$

素因数の和:3209

約数の個数: 50

約数和(自身を含む): 77039402

約数和(自身を除く): 45229402

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 3181, 5000, 6362, 10000, 12724, 15905, 25448, 31810, 50896, 63620, 79525, 127240, 159050, 254480, 318100, 397625, 636200, 795250, 1272400, 1590500, 1988125, 3181000, 3976250, 6362000, 7952500, 15905000, 31810000]

約数ペア:

[(1, 31810000), (2, 15905000), (4, 7952500), (5, 6362000), (8, 3976250), (10, 3181000), (16, 1988125), (20, 1590500), (25, 1272400), (40, 795250), (50, 636200), (80, 397625), (100, 318100), (125, 254480), (200, 159050), (250, 127240), (400, 79525), (500, 63620), (625, 50896), (1000, 31810), (1250, 25448), (2000, 15905), (2500, 12724), (3181, 10000), (5000, 6362)]