489142000

素因数分解:

$2^4\times 5^3\times {\mathrm{199}}^1\times {\mathrm{1229}}^1$

素因数の和:1451

約数の個数: 80

約数和(自身を含む): 1189656000

約数和(自身を除く): 700514000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 199, 200, 250, 398, 400, 500, 796, 995, 1000, 1229, 1592, 1990, 2000, 2458, 3184, 3980, 4916, 4975, 6145, 7960, 9832, 9950, 12290, 15920, 19664, 19900, 24580, 24875, 30725, 39800, 49160, 49750, 61450, 79600, 98320, 99500, 122900, 153625, 199000, 244571, 245800, 307250, 398000, 489142, 491600, 614500, 978284, 1222855, 1229000, 1956568, 2445710, 2458000, 3913136, 4891420, 6114275, 9782840, 12228550, 19565680, 24457100, 30571375, 48914200, 61142750, 97828400, 122285500, 244571000, 489142000]

約数ペア:

[(1, 489142000), (2, 244571000), (4, 122285500), (5, 97828400), (8, 61142750), (10, 48914200), (16, 30571375), (20, 24457100), (25, 19565680), (40, 12228550), (50, 9782840), (80, 6114275), (100, 4891420), (125, 3913136), (199, 2458000), (200, 2445710), (250, 1956568), (398, 1229000), (400, 1222855), (500, 978284), (796, 614500), (995, 491600), (1000, 489142), (1229, 398000), (1592, 307250), (1990, 245800), (2000, 244571), (2458, 199000), (3184, 153625), (3980, 122900), (4916, 99500), (4975, 98320), (6145, 79600), (7960, 61450), (9832, 49750), (9950, 49160), (12290, 39800), (15920, 30725), (19664, 24875), (19900, 24580)]