18120560

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{2729}}^1$

素因数の和:2825

約数の個数: 40

約数和(自身を含む): 42653520

約数和(自身を除く): 24532960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 2729, 3320, 5458, 6640, 10916, 13645, 21832, 27290, 43664, 54580, 109160, 218320, 226507, 453014, 906028, 1132535, 1812056, 2265070, 3624112, 4530140, 9060280, 18120560]

約数ペア:

[(1, 18120560), (2, 9060280), (4, 4530140), (5, 3624112), (8, 2265070), (10, 1812056), (16, 1132535), (20, 906028), (40, 453014), (80, 226507), (83, 218320), (166, 109160), (332, 54580), (415, 43664), (664, 27290), (830, 21832), (1328, 13645), (1660, 10916), (2729, 6640), (3320, 5458)]