18409872

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:368

約数の個数: 80

約数和(自身を含む): 51816128

約数和(自身を除く): 33406256

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 163, 181, 208, 312, 326, 362, 489, 543, 624, 652, 724, 978, 1086, 1304, 1448, 1956, 2119, 2172, 2353, 2608, 2896, 3912, 4238, 4344, 4706, 6357, 7059, 7824, 8476, 8688, 9412, 12714, 14118, 16952, 18824, 25428, 28236, 29503, 33904, 37648, 50856, 56472, 59006, 88509, 101712, 112944, 118012, 177018, 236024, 354036, 383539, 472048, 708072, 767078, 1150617, 1416144, 1534156, 2301234, 3068312, 4602468, 6136624, 9204936, 18409872]

約数ペア:

[(1, 18409872), (2, 9204936), (3, 6136624), (4, 4602468), (6, 3068312), (8, 2301234), (12, 1534156), (13, 1416144), (16, 1150617), (24, 767078), (26, 708072), (39, 472048), (48, 383539), (52, 354036), (78, 236024), (104, 177018), (156, 118012), (163, 112944), (181, 101712), (208, 88509), (312, 59006), (326, 56472), (362, 50856), (489, 37648), (543, 33904), (624, 29503), (652, 28236), (724, 25428), (978, 18824), (1086, 16952), (1304, 14118), (1448, 12714), (1956, 9412), (2119, 8688), (2172, 8476), (2353, 7824), (2608, 7059), (2896, 6357), (3912, 4706), (4238, 4344)]