18937740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{13723}}^1$

素因数の和:13758

約数の個数: 48

約数和(自身を含む): 55335168

約数和(自身を除く): 36397428

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 13723, 27446, 41169, 54892, 68615, 82338, 137230, 164676, 205845, 274460, 315629, 411690, 631258, 823380, 946887, 1262516, 1578145, 1893774, 3156290, 3787548, 4734435, 6312580, 9468870, 18937740]

約数ペア:

[(1, 18937740), (2, 9468870), (3, 6312580), (4, 4734435), (5, 3787548), (6, 3156290), (10, 1893774), (12, 1578145), (15, 1262516), (20, 946887), (23, 823380), (30, 631258), (46, 411690), (60, 315629), (69, 274460), (92, 205845), (115, 164676), (138, 137230), (230, 82338), (276, 68615), (345, 54892), (460, 41169), (690, 27446), (1380, 13723)]