18270075

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 31712256

約数和(自身を除く): 13442181

約数列:

[1, 3, 5, 15, 25, 47, 71, 73, 75, 141, 213, 219, 235, 355, 365, 705, 1065, 1095, 1175, 1775, 1825, 3337, 3431, 3525, 5183, 5325, 5475, 10011, 10293, 15549, 16685, 17155, 25915, 50055, 51465, 77745, 83425, 85775, 129575, 243601, 250275, 257325, 388725, 730803, 1218005, 3654015, 6090025, 18270075]

約数ペア:

[(1, 18270075), (3, 6090025), (5, 3654015), (15, 1218005), (25, 730803), (47, 388725), (71, 257325), (73, 250275), (75, 243601), (141, 129575), (213, 85775), (219, 83425), (235, 77745), (355, 51465), (365, 50055), (705, 25915), (1065, 17155), (1095, 16685), (1175, 15549), (1775, 10293), (1825, 10011), (3337, 5475), (3431, 5325), (3525, 5183)]