20075000

素因数分解:

$2^3\times 5^5\times {\mathrm{11}}^1\times {\mathrm{73}}^1$

素因数の和:115

約数の個数: 96

約数和(自身を含む): 52027920

約数和(自身を除く): 31952920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 73, 88, 100, 110, 125, 146, 200, 220, 250, 275, 292, 365, 440, 500, 550, 584, 625, 730, 803, 1000, 1100, 1250, 1375, 1460, 1606, 1825, 2200, 2500, 2750, 2920, 3125, 3212, 3650, 4015, 5000, 5500, 6250, 6424, 6875, 7300, 8030, 9125, 11000, 12500, 13750, 14600, 16060, 18250, 20075, 25000, 27500, 32120, 34375, 36500, 40150, 45625, 55000, 68750, 73000, 80300, 91250, 100375, 137500, 160600, 182500, 200750, 228125, 275000, 365000, 401500, 456250, 501875, 803000, 912500, 1003750, 1825000, 2007500, 2509375, 4015000, 5018750, 10037500, 20075000]

約数ペア:

[(1, 20075000), (2, 10037500), (4, 5018750), (5, 4015000), (8, 2509375), (10, 2007500), (11, 1825000), (20, 1003750), (22, 912500), (25, 803000), (40, 501875), (44, 456250), (50, 401500), (55, 365000), (73, 275000), (88, 228125), (100, 200750), (110, 182500), (125, 160600), (146, 137500), (200, 100375), (220, 91250), (250, 80300), (275, 73000), (292, 68750), (365, 55000), (440, 45625), (500, 40150), (550, 36500), (584, 34375), (625, 32120), (730, 27500), (803, 25000), (1000, 20075), (1100, 18250), (1250, 16060), (1375, 14600), (1460, 13750), (1606, 12500), (1825, 11000), (2200, 9125), (2500, 8030), (2750, 7300), (2920, 6875), (3125, 6424), (3212, 6250), (3650, 5500), (4015, 5000)]