18960520

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5711}}^1$

素因数の和:5805

約数の個数: 32

約数和(自身を含む): 43182720

約数和(自身を除く): 24222200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 5711, 11422, 22844, 28555, 45688, 57110, 114220, 228440, 474013, 948026, 1896052, 2370065, 3792104, 4740130, 9480260, 18960520]

約数ペア:

[(1, 18960520), (2, 9480260), (4, 4740130), (5, 3792104), (8, 2370065), (10, 1896052), (20, 948026), (40, 474013), (83, 228440), (166, 114220), (332, 57110), (415, 45688), (664, 28555), (830, 22844), (1660, 11422), (3320, 5711)]