7972400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1049}}^1$

素因数の和:1086

約数の個数: 60

約数和(自身を含む): 20181000

約数和(自身を除く): 12208600

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1049, 1520, 1900, 2098, 3800, 4196, 5245, 7600, 8392, 10490, 16784, 19931, 20980, 26225, 39862, 41960, 52450, 79724, 83920, 99655, 104900, 159448, 199310, 209800, 318896, 398620, 419600, 498275, 797240, 996550, 1594480, 1993100, 3986200, 7972400]

約数ペア:

[(1, 7972400), (2, 3986200), (4, 1993100), (5, 1594480), (8, 996550), (10, 797240), (16, 498275), (19, 419600), (20, 398620), (25, 318896), (38, 209800), (40, 199310), (50, 159448), (76, 104900), (80, 99655), (95, 83920), (100, 79724), (152, 52450), (190, 41960), (200, 39862), (304, 26225), (380, 20980), (400, 19931), (475, 16784), (760, 10490), (950, 8392), (1049, 7600), (1520, 5245), (1900, 4196), (2098, 3800)]