18079280

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3373}}^1$

素因数の和:3453

約数の個数: 40

約数和(自身を含む): 42674352

約数和(自身を除く): 24595072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 3373, 5360, 6746, 13492, 16865, 26984, 33730, 53968, 67460, 134920, 225991, 269840, 451982, 903964, 1129955, 1807928, 2259910, 3615856, 4519820, 9039640, 18079280]

約数ペア:

[(1, 18079280), (2, 9039640), (4, 4519820), (5, 3615856), (8, 2259910), (10, 1807928), (16, 1129955), (20, 903964), (40, 451982), (67, 269840), (80, 225991), (134, 134920), (268, 67460), (335, 53968), (536, 33730), (670, 26984), (1072, 16865), (1340, 13492), (2680, 6746), (3373, 5360)]