17945690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:267

約数の個数: 64

約数和(自身を含む): 39536640

約数和(自身を除く): 21590950

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 103, 131, 133, 190, 206, 262, 266, 515, 655, 665, 721, 917, 1030, 1310, 1330, 1442, 1834, 1957, 2489, 3605, 3914, 4585, 4978, 7210, 9170, 9785, 12445, 13493, 13699, 17423, 19570, 24890, 26986, 27398, 34846, 67465, 68495, 87115, 94451, 134930, 136990, 174230, 188902, 256367, 472255, 512734, 944510, 1281835, 1794569, 2563670, 3589138, 8972845, 17945690]

約数ペア:

[(1, 17945690), (2, 8972845), (5, 3589138), (7, 2563670), (10, 1794569), (14, 1281835), (19, 944510), (35, 512734), (38, 472255), (70, 256367), (95, 188902), (103, 174230), (131, 136990), (133, 134930), (190, 94451), (206, 87115), (262, 68495), (266, 67465), (515, 34846), (655, 27398), (665, 26986), (721, 24890), (917, 19570), (1030, 17423), (1310, 13699), (1330, 13493), (1442, 12445), (1834, 9785), (1957, 9170), (2489, 7210), (3605, 4978), (3914, 4585)]