31380400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{4129}}^1$

素因数の和:4166

約数の個数: 60

約数和(自身を含む): 79378600

約数和(自身を除く): 47998200

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, 1520, 1900, 3800, 4129, 7600, 8258, 16516, 20645, 33032, 41290, 66064, 78451, 82580, 103225, 156902, 165160, 206450, 313804, 330320, 392255, 412900, 627608, 784510, 825800, 1255216, 1569020, 1651600, 1961275, 3138040, 3922550, 6276080, 7845100, 15690200, 31380400]

約数ペア:

[(1, 31380400), (2, 15690200), (4, 7845100), (5, 6276080), (8, 3922550), (10, 3138040), (16, 1961275), (19, 1651600), (20, 1569020), (25, 1255216), (38, 825800), (40, 784510), (50, 627608), (76, 412900), (80, 392255), (95, 330320), (100, 313804), (152, 206450), (190, 165160), (200, 156902), (304, 103225), (380, 82580), (400, 78451), (475, 66064), (760, 41290), (950, 33032), (1520, 20645), (1900, 16516), (3800, 8258), (4129, 7600)]