19578740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{769}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 43982400

約数和(自身を除く): 24403660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 190, 268, 335, 380, 670, 769, 1273, 1340, 1538, 2546, 3076, 3845, 5092, 6365, 7690, 12730, 14611, 15380, 25460, 29222, 51523, 58444, 73055, 103046, 146110, 206092, 257615, 292220, 515230, 978937, 1030460, 1957874, 3915748, 4894685, 9789370, 19578740]

約数ペア:

[(1, 19578740), (2, 9789370), (4, 4894685), (5, 3915748), (10, 1957874), (19, 1030460), (20, 978937), (38, 515230), (67, 292220), (76, 257615), (95, 206092), (134, 146110), (190, 103046), (268, 73055), (335, 58444), (380, 51523), (670, 29222), (769, 25460), (1273, 15380), (1340, 14611), (1538, 12730), (2546, 7690), (3076, 6365), (3845, 5092)]