20485500

素因数分解:

$2^2\times 3^1\times 5^3\times 7^1\times {\mathrm{1951}}^1$

素因数の和:1980

約数の個数: 96

約数和(自身を含む): 68210688

約数和(自身を除く): 47725188

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 125, 140, 150, 175, 210, 250, 300, 350, 375, 420, 500, 525, 700, 750, 875, 1050, 1500, 1750, 1951, 2100, 2625, 3500, 3902, 5250, 5853, 7804, 9755, 10500, 11706, 13657, 19510, 23412, 27314, 29265, 39020, 40971, 48775, 54628, 58530, 68285, 81942, 97550, 117060, 136570, 146325, 163884, 195100, 204855, 243875, 273140, 292650, 341425, 409710, 487750, 585300, 682850, 731625, 819420, 975500, 1024275, 1365700, 1463250, 1707125, 2048550, 2926500, 3414250, 4097100, 5121375, 6828500, 10242750, 20485500]

約数ペア:

[(1, 20485500), (2, 10242750), (3, 6828500), (4, 5121375), (5, 4097100), (6, 3414250), (7, 2926500), (10, 2048550), (12, 1707125), (14, 1463250), (15, 1365700), (20, 1024275), (21, 975500), (25, 819420), (28, 731625), (30, 682850), (35, 585300), (42, 487750), (50, 409710), (60, 341425), (70, 292650), (75, 273140), (84, 243875), (100, 204855), (105, 195100), (125, 163884), (140, 146325), (150, 136570), (175, 117060), (210, 97550), (250, 81942), (300, 68285), (350, 58530), (375, 54628), (420, 48775), (500, 40971), (525, 39020), (700, 29265), (750, 27314), (875, 23412), (1050, 19510), (1500, 13657), (1750, 11706), (1951, 10500), (2100, 9755), (2625, 7804), (3500, 5853), (3902, 5250)]