67654940

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 145454400

約数和(自身を除く): 77799460

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 149, 292, 298, 311, 365, 596, 622, 730, 745, 1244, 1460, 1490, 1555, 2980, 3110, 6220, 10877, 21754, 22703, 43508, 45406, 46339, 54385, 90812, 92678, 108770, 113515, 185356, 217540, 227030, 231695, 454060, 463390, 926780, 3382747, 6765494, 13530988, 16913735, 33827470, 67654940]

約数ペア:

[(1, 67654940), (2, 33827470), (4, 16913735), (5, 13530988), (10, 6765494), (20, 3382747), (73, 926780), (146, 463390), (149, 454060), (292, 231695), (298, 227030), (311, 217540), (365, 185356), (596, 113515), (622, 108770), (730, 92678), (745, 90812), (1244, 54385), (1460, 46339), (1490, 45406), (1555, 43508), (2980, 22703), (3110, 21754), (6220, 10877)]