18258848

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{509}}^1$

素因数の和:597

約数の個数: 48

約数和(自身を含む): 38556000

約数和(自身を除く): 20297152

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 59, 76, 118, 152, 236, 304, 472, 509, 608, 944, 1018, 1121, 1888, 2036, 2242, 4072, 4484, 8144, 8968, 9671, 16288, 17936, 19342, 30031, 35872, 38684, 60062, 77368, 120124, 154736, 240248, 309472, 480496, 570589, 960992, 1141178, 2282356, 4564712, 9129424, 18258848]

約数ペア:

[(1, 18258848), (2, 9129424), (4, 4564712), (8, 2282356), (16, 1141178), (19, 960992), (32, 570589), (38, 480496), (59, 309472), (76, 240248), (118, 154736), (152, 120124), (236, 77368), (304, 60062), (472, 38684), (509, 35872), (608, 30031), (944, 19342), (1018, 17936), (1121, 16288), (1888, 9671), (2036, 8968), (2242, 8144), (4072, 4484)]