18078684

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{401}}^1$

素因数の和:455

約数の個数: 72

約数和(自身を含む): 48378288

約数和(自身を除く): 30299604

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 51, 52, 68, 78, 102, 156, 204, 221, 289, 401, 442, 578, 663, 802, 867, 884, 1156, 1203, 1326, 1604, 1734, 2406, 2652, 3468, 3757, 4812, 5213, 6817, 7514, 10426, 11271, 13634, 15028, 15639, 20451, 20852, 22542, 27268, 31278, 40902, 45084, 62556, 81804, 88621, 115889, 177242, 231778, 265863, 347667, 354484, 463556, 531726, 695334, 1063452, 1390668, 1506557, 3013114, 4519671, 6026228, 9039342, 18078684]

約数ペア:

[(1, 18078684), (2, 9039342), (3, 6026228), (4, 4519671), (6, 3013114), (12, 1506557), (13, 1390668), (17, 1063452), (26, 695334), (34, 531726), (39, 463556), (51, 354484), (52, 347667), (68, 265863), (78, 231778), (102, 177242), (156, 115889), (204, 88621), (221, 81804), (289, 62556), (401, 45084), (442, 40902), (578, 31278), (663, 27268), (802, 22542), (867, 20852), (884, 20451), (1156, 15639), (1203, 15028), (1326, 13634), (1604, 11271), (1734, 10426), (2406, 7514), (2652, 6817), (3468, 5213), (3757, 4812)]