720796671

素因数分解:

$3^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{587}}^1$

素因数の和:765

約数の個数: 64

約数和(自身を含む): 1253145600

約数和(自身を除く): 532348929

約数列:

[1, 3, 7, 9, 21, 27, 63, 73, 89, 189, 219, 267, 511, 587, 623, 657, 801, 1533, 1761, 1869, 1971, 2403, 4109, 4599, 5283, 5607, 6497, 12327, 13797, 15849, 16821, 19491, 36981, 42851, 45479, 52243, 58473, 110943, 128553, 136437, 156729, 175419, 299957, 365701, 385659, 409311, 470187, 899871, 1097103, 1156977, 1227933, 1410561, 2699613, 3291309, 3813739, 8098839, 9873927, 11441217, 26696173, 34323651, 80088519, 102970953, 240265557, 720796671]

約数ペア:

[(1, 720796671), (3, 240265557), (7, 102970953), (9, 80088519), (21, 34323651), (27, 26696173), (63, 11441217), (73, 9873927), (89, 8098839), (189, 3813739), (219, 3291309), (267, 2699613), (511, 1410561), (587, 1227933), (623, 1156977), (657, 1097103), (801, 899871), (1533, 470187), (1761, 409311), (1869, 385659), (1971, 365701), (2403, 299957), (4109, 175419), (4599, 156729), (5283, 136437), (5607, 128553), (6497, 110943), (12327, 58473), (13797, 52243), (15849, 45479), (16821, 42851), (19491, 36981)]