13249340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 30270240

約数和(自身を除く): 17020900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 389, 524, 655, 778, 1310, 1556, 1703, 1945, 2620, 3406, 3890, 5057, 6812, 7780, 8515, 10114, 17030, 20228, 25285, 34060, 50570, 50959, 101140, 101918, 203836, 254795, 509590, 662467, 1019180, 1324934, 2649868, 3312335, 6624670, 13249340]

約数ペア:

[(1, 13249340), (2, 6624670), (4, 3312335), (5, 2649868), (10, 1324934), (13, 1019180), (20, 662467), (26, 509590), (52, 254795), (65, 203836), (130, 101918), (131, 101140), (260, 50959), (262, 50570), (389, 34060), (524, 25285), (655, 20228), (778, 17030), (1310, 10114), (1556, 8515), (1703, 7780), (1945, 6812), (2620, 5057), (3406, 3890)]