20172165

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:170

約数の個数: 64

約数和(自身を含む): 37158912

約数和(自身を除く): 16986747

約数列:

[1, 3, 5, 13, 15, 31, 39, 47, 65, 71, 93, 141, 155, 195, 213, 235, 355, 403, 465, 611, 705, 923, 1065, 1209, 1457, 1833, 2015, 2201, 2769, 3055, 3337, 4371, 4615, 6045, 6603, 7285, 9165, 10011, 11005, 13845, 16685, 18941, 21855, 28613, 33015, 43381, 50055, 56823, 85839, 94705, 103447, 130143, 143065, 216905, 284115, 310341, 429195, 517235, 650715, 1344811, 1551705, 4034433, 6724055, 20172165]

約数ペア:

[(1, 20172165), (3, 6724055), (5, 4034433), (13, 1551705), (15, 1344811), (31, 650715), (39, 517235), (47, 429195), (65, 310341), (71, 284115), (93, 216905), (141, 143065), (155, 130143), (195, 103447), (213, 94705), (235, 85839), (355, 56823), (403, 50055), (465, 43381), (611, 33015), (705, 28613), (923, 21855), (1065, 18941), (1209, 16685), (1457, 13845), (1833, 11005), (2015, 10011), (2201, 9165), (2769, 7285), (3055, 6603), (3337, 6045), (4371, 4615)]