18680455875

素因数分解:

$3^1\times 5^3\times {\mathrm{41}}^1\times {\mathrm{431}}^1\times {\mathrm{2819}}^1$

素因数の和:3309

約数の個数: 64

約数和(自身を含む): 31927633920

約数和(自身を除く): 13247178045

約数列:

[1, 3, 5, 15, 25, 41, 75, 123, 125, 205, 375, 431, 615, 1025, 1293, 2155, 2819, 3075, 5125, 6465, 8457, 10775, 14095, 15375, 17671, 32325, 42285, 53013, 53875, 70475, 88355, 115579, 161625, 211425, 265065, 346737, 352375, 441775, 577895, 1057125, 1214989, 1325325, 1733685, 2208875, 2889475, 3644967, 6074945, 6626625, 8668425, 14447375, 18224835, 30374725, 43342125, 49814549, 91124175, 149443647, 151873625, 249072745, 455620875, 747218235, 1245363725, 3736091175, 6226818625, 18680455875]

約数ペア:

[(1, 18680455875), (3, 6226818625), (5, 3736091175), (15, 1245363725), (25, 747218235), (41, 455620875), (75, 249072745), (123, 151873625), (125, 149443647), (205, 91124175), (375, 49814549), (431, 43342125), (615, 30374725), (1025, 18224835), (1293, 14447375), (2155, 8668425), (2819, 6626625), (3075, 6074945), (5125, 3644967), (6465, 2889475), (8457, 2208875), (10775, 1733685), (14095, 1325325), (15375, 1214989), (17671, 1057125), (32325, 577895), (42285, 441775), (53013, 352375), (53875, 346737), (70475, 265065), (88355, 211425), (115579, 161625)]