18770960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18049}}^1$

素因数の和:18075

約数の個数: 40

約数和(自身を含む): 47002200

約数和(自身を除く): 28231240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18049, 36098, 72196, 90245, 144392, 180490, 234637, 288784, 360980, 469274, 721960, 938548, 1173185, 1443920, 1877096, 2346370, 3754192, 4692740, 9385480, 18770960]

約数ペア:

[(1, 18770960), (2, 9385480), (4, 4692740), (5, 3754192), (8, 2346370), (10, 1877096), (13, 1443920), (16, 1173185), (20, 938548), (26, 721960), (40, 469274), (52, 360980), (65, 288784), (80, 234637), (104, 180490), (130, 144392), (208, 90245), (260, 72196), (520, 36098), (1040, 18049)]