18509325

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 33331200

約数和(自身を除く): 14821875

約数列:

[1, 3, 5, 15, 19, 25, 31, 57, 75, 93, 95, 155, 285, 419, 465, 475, 589, 775, 1257, 1425, 1767, 2095, 2325, 2945, 6285, 7961, 8835, 10475, 12989, 14725, 23883, 31425, 38967, 39805, 44175, 64945, 119415, 194835, 199025, 246791, 324725, 597075, 740373, 974175, 1233955, 3701865, 6169775, 18509325]

約数ペア:

[(1, 18509325), (3, 6169775), (5, 3701865), (15, 1233955), (19, 974175), (25, 740373), (31, 597075), (57, 324725), (75, 246791), (93, 199025), (95, 194835), (155, 119415), (285, 64945), (419, 44175), (465, 39805), (475, 38967), (589, 31425), (775, 23883), (1257, 14725), (1425, 12989), (1767, 10475), (2095, 8835), (2325, 7961), (2945, 6285)]