19607904

素因数分解:

$2^5\times 3^2\times {\mathrm{103}}^1\times {\mathrm{661}}^1$

素因数の和:780

約数の個数: 72

約数和(自身を含む): 56386512

約数和(自身を除く): 36778608

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 103, 144, 206, 288, 309, 412, 618, 661, 824, 927, 1236, 1322, 1648, 1854, 1983, 2472, 2644, 3296, 3708, 3966, 4944, 5288, 5949, 7416, 7932, 9888, 10576, 11898, 14832, 15864, 21152, 23796, 29664, 31728, 47592, 63456, 68083, 95184, 136166, 190368, 204249, 272332, 408498, 544664, 612747, 816996, 1089328, 1225494, 1633992, 2178656, 2450988, 3267984, 4901976, 6535968, 9803952, 19607904]

約数ペア:

[(1, 19607904), (2, 9803952), (3, 6535968), (4, 4901976), (6, 3267984), (8, 2450988), (9, 2178656), (12, 1633992), (16, 1225494), (18, 1089328), (24, 816996), (32, 612747), (36, 544664), (48, 408498), (72, 272332), (96, 204249), (103, 190368), (144, 136166), (206, 95184), (288, 68083), (309, 63456), (412, 47592), (618, 31728), (661, 29664), (824, 23796), (927, 21152), (1236, 15864), (1322, 14832), (1648, 11898), (1854, 10576), (1983, 9888), (2472, 7932), (2644, 7416), (3296, 5949), (3708, 5288), (3966, 4944)]