391005085

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{643}}^1$

素因数の和:877

約数の個数: 32

約数和(自身を含む): 510975360

約数和(自身を除く): 119970275

約数列:

[1, 5, 19, 37, 95, 173, 185, 643, 703, 865, 3215, 3287, 3515, 6401, 12217, 16435, 23791, 32005, 61085, 111239, 118955, 121619, 452029, 556195, 608095, 2113541, 2260145, 4115843, 10567705, 20579215, 78201017, 391005085]

約数ペア:

[(1, 391005085), (5, 78201017), (19, 20579215), (37, 10567705), (95, 4115843), (173, 2260145), (185, 2113541), (643, 608095), (703, 556195), (865, 452029), (3215, 121619), (3287, 118955), (3515, 111239), (6401, 61085), (12217, 32005), (16435, 23791)]