164411275

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 247484160

約数和(自身を除く): 83072885

約数列:

[1, 5, 7, 19, 25, 35, 95, 133, 175, 197, 251, 475, 665, 985, 1255, 1379, 1757, 3325, 3743, 4769, 4925, 6275, 6895, 8785, 18715, 23845, 26201, 33383, 34475, 43925, 49447, 93575, 119225, 131005, 166915, 247235, 346129, 655025, 834575, 939493, 1236175, 1730645, 4697465, 6576451, 8653225, 23487325, 32882255, 164411275]

約数ペア:

[(1, 164411275), (5, 32882255), (7, 23487325), (19, 8653225), (25, 6576451), (35, 4697465), (95, 1730645), (133, 1236175), (175, 939493), (197, 834575), (251, 655025), (475, 346129), (665, 247235), (985, 166915), (1255, 131005), (1379, 119225), (1757, 93575), (3325, 49447), (3743, 43925), (4769, 34475), (4925, 33383), (6275, 26201), (6895, 23845), (8785, 18715)]