22421960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:542

約数の個数: 64

約数和(自身を含む): 55598400

約数和(自身を除く): 33176440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 131, 220, 262, 389, 440, 524, 655, 778, 1048, 1310, 1441, 1556, 1945, 2620, 2882, 3112, 3890, 4279, 5240, 5764, 7205, 7780, 8558, 11528, 14410, 15560, 17116, 21395, 28820, 34232, 42790, 50959, 57640, 85580, 101918, 171160, 203836, 254795, 407672, 509590, 560549, 1019180, 1121098, 2038360, 2242196, 2802745, 4484392, 5605490, 11210980, 22421960]

約数ペア:

[(1, 22421960), (2, 11210980), (4, 5605490), (5, 4484392), (8, 2802745), (10, 2242196), (11, 2038360), (20, 1121098), (22, 1019180), (40, 560549), (44, 509590), (55, 407672), (88, 254795), (110, 203836), (131, 171160), (220, 101918), (262, 85580), (389, 57640), (440, 50959), (524, 42790), (655, 34232), (778, 28820), (1048, 21395), (1310, 17116), (1441, 15560), (1556, 14410), (1945, 11528), (2620, 8558), (2882, 7780), (3112, 7205), (3890, 5764), (4279, 5240)]