18343280

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{1373}}^1$

素因数の和:1553

約数の個数: 40

約数和(自身を含む): 42934752

約数和(自身を除く): 24591472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 334, 668, 835, 1336, 1373, 1670, 2672, 2746, 3340, 5492, 6680, 6865, 10984, 13360, 13730, 21968, 27460, 54920, 109840, 229291, 458582, 917164, 1146455, 1834328, 2292910, 3668656, 4585820, 9171640, 18343280]

約数ペア:

[(1, 18343280), (2, 9171640), (4, 4585820), (5, 3668656), (8, 2292910), (10, 1834328), (16, 1146455), (20, 917164), (40, 458582), (80, 229291), (167, 109840), (334, 54920), (668, 27460), (835, 21968), (1336, 13730), (1373, 13360), (1670, 10984), (2672, 6865), (2746, 6680), (3340, 5492)]