648492047

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1\times {\mathrm{449}}^1$

素因数の和:755

約数の個数: 32

約数和(自身を含む): 804816000

約数和(自身を除く): 156323953

約数列:

[1, 7, 17, 53, 119, 229, 371, 449, 901, 1603, 3143, 3893, 6307, 7633, 12137, 23797, 27251, 53431, 84959, 102821, 166579, 206329, 404549, 719747, 1444303, 1747957, 2831843, 5449513, 12235699, 38146591, 92641721, 648492047]

約数ペア:

[(1, 648492047), (7, 92641721), (17, 38146591), (53, 12235699), (119, 5449513), (229, 2831843), (371, 1747957), (449, 1444303), (901, 719747), (1603, 404549), (3143, 206329), (3893, 166579), (6307, 102821), (7633, 84959), (12137, 53431), (23797, 27251)]