19931000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1049}}^1$

素因数の和:1089

約数の個数: 64

約数和(自身を含む): 49140000

約数和(自身を除く): 29209000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 760, 950, 1000, 1049, 1900, 2098, 2375, 3800, 4196, 4750, 5245, 8392, 9500, 10490, 19000, 19931, 20980, 26225, 39862, 41960, 52450, 79724, 99655, 104900, 131125, 159448, 199310, 209800, 262250, 398620, 498275, 524500, 797240, 996550, 1049000, 1993100, 2491375, 3986200, 4982750, 9965500, 19931000]

約数ペア:

[(1, 19931000), (2, 9965500), (4, 4982750), (5, 3986200), (8, 2491375), (10, 1993100), (19, 1049000), (20, 996550), (25, 797240), (38, 524500), (40, 498275), (50, 398620), (76, 262250), (95, 209800), (100, 199310), (125, 159448), (152, 131125), (190, 104900), (200, 99655), (250, 79724), (380, 52450), (475, 41960), (500, 39862), (760, 26225), (950, 20980), (1000, 19931), (1049, 19000), (1900, 10490), (2098, 9500), (2375, 8392), (3800, 5245), (4196, 4750)]