12561375

素因数分解:

$3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:121

約数の個数: 64

約数和(自身を含む): 23063040

約数和(自身を除く): 10501665

約数列:

[1, 3, 5, 15, 19, 25, 41, 43, 57, 75, 95, 123, 125, 129, 205, 215, 285, 375, 475, 615, 645, 779, 817, 1025, 1075, 1425, 1763, 2337, 2375, 2451, 3075, 3225, 3895, 4085, 5125, 5289, 5375, 7125, 8815, 11685, 12255, 15375, 16125, 19475, 20425, 26445, 33497, 44075, 58425, 61275, 97375, 100491, 102125, 132225, 167485, 220375, 292125, 306375, 502455, 661125, 837425, 2512275, 4187125, 12561375]

約数ペア:

[(1, 12561375), (3, 4187125), (5, 2512275), (15, 837425), (19, 661125), (25, 502455), (41, 306375), (43, 292125), (57, 220375), (75, 167485), (95, 132225), (123, 102125), (125, 100491), (129, 97375), (205, 61275), (215, 58425), (285, 44075), (375, 33497), (475, 26445), (615, 20425), (645, 19475), (779, 16125), (817, 15375), (1025, 12255), (1075, 11685), (1425, 8815), (1763, 7125), (2337, 5375), (2375, 5289), (2451, 5125), (3075, 4085), (3225, 3895)]