19009640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 46569600

約数和(自身を除く): 27559960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 139, 260, 263, 278, 520, 526, 556, 695, 1052, 1112, 1315, 1390, 1807, 2104, 2630, 2780, 3419, 3614, 5260, 5560, 6838, 7228, 9035, 10520, 13676, 14456, 17095, 18070, 27352, 34190, 36140, 36557, 68380, 72280, 73114, 136760, 146228, 182785, 292456, 365570, 475241, 731140, 950482, 1462280, 1900964, 2376205, 3801928, 4752410, 9504820, 19009640]

約数ペア:

[(1, 19009640), (2, 9504820), (4, 4752410), (5, 3801928), (8, 2376205), (10, 1900964), (13, 1462280), (20, 950482), (26, 731140), (40, 475241), (52, 365570), (65, 292456), (104, 182785), (130, 146228), (139, 136760), (260, 73114), (263, 72280), (278, 68380), (520, 36557), (526, 36140), (556, 34190), (695, 27352), (1052, 18070), (1112, 17095), (1315, 14456), (1390, 13676), (1807, 10520), (2104, 9035), (2630, 7228), (2780, 6838), (3419, 5560), (3614, 5260)]