1921105420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{673}}^1\times {\mathrm{10979}}^1$

素因数の和:11674

約数の個数: 48

約数和(自身を含む): 4351505760

約数和(自身を除く): 2430400340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 673, 1346, 2692, 3365, 6730, 8749, 10979, 13460, 17498, 21958, 34996, 43745, 43916, 54895, 87490, 109790, 142727, 174980, 219580, 285454, 570908, 713635, 1427270, 2854540, 7388867, 14777734, 29555468, 36944335, 73888670, 96055271, 147777340, 192110542, 384221084, 480276355, 960552710, 1921105420]

約数ペア:

[(1, 1921105420), (2, 960552710), (4, 480276355), (5, 384221084), (10, 192110542), (13, 147777340), (20, 96055271), (26, 73888670), (52, 36944335), (65, 29555468), (130, 14777734), (260, 7388867), (673, 2854540), (1346, 1427270), (2692, 713635), (3365, 570908), (6730, 285454), (8749, 219580), (10979, 174980), (13460, 142727), (17498, 109790), (21958, 87490), (34996, 54895), (43745, 43916)]