18448468

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 36590400

約数和(自身を除く): 18141932

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 109, 131, 218, 262, 323, 436, 524, 646, 1292, 1853, 2071, 2227, 2489, 3706, 4142, 4454, 4978, 7412, 8284, 8908, 9956, 14279, 28558, 35207, 42313, 57116, 70414, 84626, 140828, 169252, 242743, 271301, 485486, 542602, 970972, 1085204, 4612117, 9224234, 18448468]

約数ペア:

[(1, 18448468), (2, 9224234), (4, 4612117), (17, 1085204), (19, 970972), (34, 542602), (38, 485486), (68, 271301), (76, 242743), (109, 169252), (131, 140828), (218, 84626), (262, 70414), (323, 57116), (436, 42313), (524, 35207), (646, 28558), (1292, 14279), (1853, 9956), (2071, 8908), (2227, 8284), (2489, 7412), (3706, 4978), (4142, 4454)]