22811620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{397}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 55062504

約数和(自身を除く): 32250884

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 169, 170, 221, 260, 338, 340, 397, 442, 676, 794, 845, 884, 1105, 1588, 1690, 1985, 2210, 2873, 3380, 3970, 4420, 5161, 5746, 6749, 7940, 10322, 11492, 13498, 14365, 20644, 25805, 26996, 28730, 33745, 51610, 57460, 67093, 67490, 87737, 103220, 134186, 134980, 175474, 268372, 335465, 350948, 438685, 670930, 877370, 1140581, 1341860, 1754740, 2281162, 4562324, 5702905, 11405810, 22811620]

約数ペア:

[(1, 22811620), (2, 11405810), (4, 5702905), (5, 4562324), (10, 2281162), (13, 1754740), (17, 1341860), (20, 1140581), (26, 877370), (34, 670930), (52, 438685), (65, 350948), (68, 335465), (85, 268372), (130, 175474), (169, 134980), (170, 134186), (221, 103220), (260, 87737), (338, 67490), (340, 67093), (397, 57460), (442, 51610), (676, 33745), (794, 28730), (845, 26996), (884, 25805), (1105, 20644), (1588, 14365), (1690, 13498), (1985, 11492), (2210, 10322), (2873, 7940), (3380, 6749), (3970, 5746), (4420, 5161)]