641689345

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1\times {\mathrm{883}}^1$

素因数の和:1153

約数の個数: 32

約数和(自身を含む): 857211264

約数和(自身を除く): 215521919

約数列:

[1, 5, 11, 55, 73, 181, 365, 803, 883, 905, 1991, 4015, 4415, 9713, 9955, 13213, 48565, 64459, 66065, 145343, 159823, 322295, 709049, 726715, 799115, 1758053, 3545245, 8790265, 11667079, 58335395, 128337869, 641689345]

約数ペア:

[(1, 641689345), (5, 128337869), (11, 58335395), (55, 11667079), (73, 8790265), (181, 3545245), (365, 1758053), (803, 799115), (883, 726715), (905, 709049), (1991, 322295), (4015, 159823), (4415, 145343), (9713, 66065), (9955, 64459), (13213, 48565)]