81564700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1069}}^1$

素因数の和:1199

約数の個数: 72

約数和(自身を含む): 204327200

約数和(自身を除く): 122762500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 109, 140, 175, 218, 350, 436, 545, 700, 763, 1069, 1090, 1526, 2138, 2180, 2725, 3052, 3815, 4276, 5345, 5450, 7483, 7630, 10690, 10900, 14966, 15260, 19075, 21380, 26725, 29932, 37415, 38150, 53450, 74830, 76300, 106900, 116521, 149660, 187075, 233042, 374150, 466084, 582605, 748300, 815647, 1165210, 1631294, 2330420, 2913025, 3262588, 4078235, 5826050, 8156470, 11652100, 16312940, 20391175, 40782350, 81564700]

約数ペア:

[(1, 81564700), (2, 40782350), (4, 20391175), (5, 16312940), (7, 11652100), (10, 8156470), (14, 5826050), (20, 4078235), (25, 3262588), (28, 2913025), (35, 2330420), (50, 1631294), (70, 1165210), (100, 815647), (109, 748300), (140, 582605), (175, 466084), (218, 374150), (350, 233042), (436, 187075), (545, 149660), (700, 116521), (763, 106900), (1069, 76300), (1090, 74830), (1526, 53450), (2138, 38150), (2180, 37415), (2725, 29932), (3052, 26725), (3815, 21380), (4276, 19075), (5345, 15260), (5450, 14966), (7483, 10900), (7630, 10690)]