16128520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{373}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 38776320

約数和(自身を除く): 22647800

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 47, 92, 94, 115, 184, 188, 230, 235, 373, 376, 460, 470, 746, 920, 940, 1081, 1492, 1865, 1880, 2162, 2984, 3730, 4324, 5405, 7460, 8579, 8648, 10810, 14920, 17158, 17531, 21620, 34316, 35062, 42895, 43240, 68632, 70124, 85790, 87655, 140248, 171580, 175310, 343160, 350620, 403213, 701240, 806426, 1612852, 2016065, 3225704, 4032130, 8064260, 16128520]

約数ペア:

[(1, 16128520), (2, 8064260), (4, 4032130), (5, 3225704), (8, 2016065), (10, 1612852), (20, 806426), (23, 701240), (40, 403213), (46, 350620), (47, 343160), (92, 175310), (94, 171580), (115, 140248), (184, 87655), (188, 85790), (230, 70124), (235, 68632), (373, 43240), (376, 42895), (460, 35062), (470, 34316), (746, 21620), (920, 17531), (940, 17158), (1081, 14920), (1492, 10810), (1865, 8648), (1880, 8579), (2162, 7460), (2984, 5405), (3730, 4324)]