281012000

素因数分解:

$2^5\times 5^3\times {\mathrm{163}}^1\times {\mathrm{431}}^1$

素因数の和:619

約数の個数: 96

約数和(自身を含む): 696294144

約数和(自身を除く): 415282144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 163, 200, 250, 326, 400, 431, 500, 652, 800, 815, 862, 1000, 1304, 1630, 1724, 2000, 2155, 2608, 3260, 3448, 4000, 4075, 4310, 5216, 6520, 6896, 8150, 8620, 10775, 13040, 13792, 16300, 17240, 20375, 21550, 26080, 32600, 34480, 40750, 43100, 53875, 65200, 68960, 70253, 81500, 86200, 107750, 130400, 140506, 163000, 172400, 215500, 281012, 326000, 344800, 351265, 431000, 562024, 652000, 702530, 862000, 1124048, 1405060, 1724000, 1756325, 2248096, 2810120, 3512650, 5620240, 7025300, 8781625, 11240480, 14050600, 17563250, 28101200, 35126500, 56202400, 70253000, 140506000, 281012000]

約数ペア:

[(1, 281012000), (2, 140506000), (4, 70253000), (5, 56202400), (8, 35126500), (10, 28101200), (16, 17563250), (20, 14050600), (25, 11240480), (32, 8781625), (40, 7025300), (50, 5620240), (80, 3512650), (100, 2810120), (125, 2248096), (160, 1756325), (163, 1724000), (200, 1405060), (250, 1124048), (326, 862000), (400, 702530), (431, 652000), (500, 562024), (652, 431000), (800, 351265), (815, 344800), (862, 326000), (1000, 281012), (1304, 215500), (1630, 172400), (1724, 163000), (2000, 140506), (2155, 130400), (2608, 107750), (3260, 86200), (3448, 81500), (4000, 70253), (4075, 68960), (4310, 65200), (5216, 53875), (6520, 43100), (6896, 40750), (8150, 34480), (8620, 32600), (10775, 26080), (13040, 21550), (13792, 20375), (16300, 17240)]