2909140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 6717312

約数和(自身を除く): 3808172

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 167, 260, 268, 334, 335, 668, 670, 835, 871, 1340, 1670, 1742, 2171, 3340, 3484, 4342, 4355, 8684, 8710, 10855, 11189, 17420, 21710, 22378, 43420, 44756, 55945, 111890, 145457, 223780, 290914, 581828, 727285, 1454570, 2909140]

約数ペア:

[(1, 2909140), (2, 1454570), (4, 727285), (5, 581828), (10, 290914), (13, 223780), (20, 145457), (26, 111890), (52, 55945), (65, 44756), (67, 43420), (130, 22378), (134, 21710), (167, 17420), (260, 11189), (268, 10855), (334, 8710), (335, 8684), (668, 4355), (670, 4342), (835, 3484), (871, 3340), (1340, 2171), (1670, 1742)]