18985356

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{359}}^1$

素因数の和:495

約数の個数: 72

約数和(自身を含む): 52284960

約数和(自身を除く): 33299604

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 113, 117, 156, 226, 234, 339, 359, 452, 468, 678, 718, 1017, 1077, 1356, 1436, 1469, 2034, 2154, 2938, 3231, 4068, 4308, 4407, 4667, 5876, 6462, 8814, 9334, 12924, 13221, 14001, 17628, 18668, 26442, 28002, 40567, 42003, 52884, 56004, 81134, 84006, 121701, 162268, 168012, 243402, 365103, 486804, 527371, 730206, 1054742, 1460412, 1582113, 2109484, 3164226, 4746339, 6328452, 9492678, 18985356]

約数ペア:

[(1, 18985356), (2, 9492678), (3, 6328452), (4, 4746339), (6, 3164226), (9, 2109484), (12, 1582113), (13, 1460412), (18, 1054742), (26, 730206), (36, 527371), (39, 486804), (52, 365103), (78, 243402), (113, 168012), (117, 162268), (156, 121701), (226, 84006), (234, 81134), (339, 56004), (359, 52884), (452, 42003), (468, 40567), (678, 28002), (718, 26442), (1017, 18668), (1077, 17628), (1356, 14001), (1436, 13221), (1469, 12924), (2034, 9334), (2154, 8814), (2938, 6462), (3231, 5876), (4068, 4667), (4308, 4407)]