18357496

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 38880000

約数和(自身を除く): 20522504

約数列:

[1, 2, 4, 8, 19, 23, 38, 46, 59, 76, 89, 92, 118, 152, 178, 184, 236, 356, 437, 472, 712, 874, 1121, 1357, 1691, 1748, 2047, 2242, 2714, 3382, 3496, 4094, 4484, 5251, 5428, 6764, 8188, 8968, 10502, 10856, 13528, 16376, 21004, 25783, 38893, 42008, 51566, 77786, 99769, 103132, 120773, 155572, 199538, 206264, 241546, 311144, 399076, 483092, 798152, 966184, 2294687, 4589374, 9178748, 18357496]

約数ペア:

[(1, 18357496), (2, 9178748), (4, 4589374), (8, 2294687), (19, 966184), (23, 798152), (38, 483092), (46, 399076), (59, 311144), (76, 241546), (89, 206264), (92, 199538), (118, 155572), (152, 120773), (178, 103132), (184, 99769), (236, 77786), (356, 51566), (437, 42008), (472, 38893), (712, 25783), (874, 21004), (1121, 16376), (1357, 13528), (1691, 10856), (1748, 10502), (2047, 8968), (2242, 8188), (2714, 6764), (3382, 5428), (3496, 5251), (4094, 4484)]