217871860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{3797}}^1$

素因数の和:3976

約数の個数: 48

約数和(自身を含む): 484928640

約数和(自身を除く): 267056780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 151, 190, 302, 380, 604, 755, 1510, 2869, 3020, 3797, 5738, 7594, 11476, 14345, 15188, 18985, 28690, 37970, 57380, 72143, 75940, 144286, 288572, 360715, 573347, 721430, 1146694, 1442860, 2293388, 2866735, 5733470, 10893593, 11466940, 21787186, 43574372, 54467965, 108935930, 217871860]

約数ペア:

[(1, 217871860), (2, 108935930), (4, 54467965), (5, 43574372), (10, 21787186), (19, 11466940), (20, 10893593), (38, 5733470), (76, 2866735), (95, 2293388), (151, 1442860), (190, 1146694), (302, 721430), (380, 573347), (604, 360715), (755, 288572), (1510, 144286), (2869, 75940), (3020, 72143), (3797, 57380), (5738, 37970), (7594, 28690), (11476, 18985), (14345, 15188)]