19922940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{733}}^1$

素因数の和:899

約数の個数: 72

約数和(自身を含む): 60916128

約数和(自身を除く): 40993188

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 151, 180, 302, 453, 604, 733, 755, 906, 1359, 1466, 1510, 1812, 2199, 2265, 2718, 2932, 3020, 3665, 4398, 4530, 5436, 6597, 6795, 7330, 8796, 9060, 10995, 13194, 13590, 14660, 21990, 26388, 27180, 32985, 43980, 65970, 110683, 131940, 221366, 332049, 442732, 553415, 664098, 996147, 1106830, 1328196, 1660245, 1992294, 2213660, 3320490, 3984588, 4980735, 6640980, 9961470, 19922940]

約数ペア:

[(1, 19922940), (2, 9961470), (3, 6640980), (4, 4980735), (5, 3984588), (6, 3320490), (9, 2213660), (10, 1992294), (12, 1660245), (15, 1328196), (18, 1106830), (20, 996147), (30, 664098), (36, 553415), (45, 442732), (60, 332049), (90, 221366), (151, 131940), (180, 110683), (302, 65970), (453, 43980), (604, 32985), (733, 27180), (755, 26388), (906, 21990), (1359, 14660), (1466, 13590), (1510, 13194), (1812, 10995), (2199, 9060), (2265, 8796), (2718, 7330), (2932, 6795), (3020, 6597), (3665, 5436), (4398, 4530)]