18808568

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{509}}^1$

素因数の和:695

約数の個数: 32

約数和(自身を含む): 36720000

約数和(自身を除く): 17911432

約数列:

[1, 2, 4, 8, 31, 62, 124, 149, 248, 298, 509, 596, 1018, 1192, 2036, 4072, 4619, 9238, 15779, 18476, 31558, 36952, 63116, 75841, 126232, 151682, 303364, 606728, 2351071, 4702142, 9404284, 18808568]

約数ペア:

[(1, 18808568), (2, 9404284), (4, 4702142), (8, 2351071), (31, 606728), (62, 303364), (124, 151682), (149, 126232), (248, 75841), (298, 63116), (509, 36952), (596, 31558), (1018, 18476), (1192, 15779), (2036, 9238), (4072, 4619)]