66781360

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{17761}}^1$

素因数の和:17821

約数の個数: 40

約数和(自身を含む): 158579136

約数和(自身を除く): 91797776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 17761, 35522, 71044, 88805, 142088, 177610, 284176, 355220, 710440, 834767, 1420880, 1669534, 3339068, 4173835, 6678136, 8347670, 13356272, 16695340, 33390680, 66781360]

約数ペア:

[(1, 66781360), (2, 33390680), (4, 16695340), (5, 13356272), (8, 8347670), (10, 6678136), (16, 4173835), (20, 3339068), (40, 1669534), (47, 1420880), (80, 834767), (94, 710440), (188, 355220), (235, 284176), (376, 177610), (470, 142088), (752, 88805), (940, 71044), (1880, 35522), (3760, 17761)]