631596940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{2789}}^1$

素因数の和:2891

約数の個数: 72

約数和(自身を含む): 1458187920

約数和(自身を除く): 826590980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 169, 260, 268, 335, 338, 670, 676, 845, 871, 1340, 1690, 1742, 2789, 3380, 3484, 4355, 5578, 8710, 11156, 11323, 13945, 17420, 22646, 27890, 36257, 45292, 55780, 56615, 72514, 113230, 145028, 181285, 186863, 226460, 362570, 373726, 471341, 725140, 747452, 934315, 942682, 1868630, 1885364, 2356705, 2429219, 3737260, 4713410, 4858438, 9426820, 9716876, 12146095, 24292190, 31579847, 48584380, 63159694, 126319388, 157899235, 315798470, 631596940]

約数ペア:

[(1, 631596940), (2, 315798470), (4, 157899235), (5, 126319388), (10, 63159694), (13, 48584380), (20, 31579847), (26, 24292190), (52, 12146095), (65, 9716876), (67, 9426820), (130, 4858438), (134, 4713410), (169, 3737260), (260, 2429219), (268, 2356705), (335, 1885364), (338, 1868630), (670, 942682), (676, 934315), (845, 747452), (871, 725140), (1340, 471341), (1690, 373726), (1742, 362570), (2789, 226460), (3380, 186863), (3484, 181285), (4355, 145028), (5578, 113230), (8710, 72514), (11156, 56615), (11323, 55780), (13945, 45292), (17420, 36257), (22646, 27890)]