19709560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1307}}^1$

素因数の和:1360

約数の個数: 64

約数和(自身を含む): 49442400

約数和(自身を除く): 29732840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 116, 130, 145, 232, 260, 290, 377, 520, 580, 754, 1160, 1307, 1508, 1885, 2614, 3016, 3770, 5228, 6535, 7540, 10456, 13070, 15080, 16991, 26140, 33982, 37903, 52280, 67964, 75806, 84955, 135928, 151612, 169910, 189515, 303224, 339820, 379030, 492739, 679640, 758060, 985478, 1516120, 1970956, 2463695, 3941912, 4927390, 9854780, 19709560]

約数ペア:

[(1, 19709560), (2, 9854780), (4, 4927390), (5, 3941912), (8, 2463695), (10, 1970956), (13, 1516120), (20, 985478), (26, 758060), (29, 679640), (40, 492739), (52, 379030), (58, 339820), (65, 303224), (104, 189515), (116, 169910), (130, 151612), (145, 135928), (232, 84955), (260, 75806), (290, 67964), (377, 52280), (520, 37903), (580, 33982), (754, 26140), (1160, 16991), (1307, 15080), (1508, 13070), (1885, 10456), (2614, 7540), (3016, 6535), (3770, 5228)]