639267642

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{4133}}^1$

素因数の和:4815

約数の個数: 48

約数和(自身を含む): 1494242568

約数和(自身を除く): 854974926

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 661, 1322, 1983, 3966, 4133, 5949, 8266, 8593, 11898, 12399, 17186, 24798, 25779, 37197, 51558, 53729, 74394, 77337, 107458, 154674, 161187, 322374, 483561, 967122, 2731913, 5463826, 8195739, 16391478, 24587217, 35514869, 49174434, 71029738, 106544607, 213089214, 319633821, 639267642]

約数ペア:

[(1, 639267642), (2, 319633821), (3, 213089214), (6, 106544607), (9, 71029738), (13, 49174434), (18, 35514869), (26, 24587217), (39, 16391478), (78, 8195739), (117, 5463826), (234, 2731913), (661, 967122), (1322, 483561), (1983, 322374), (3966, 161187), (4133, 154674), (5949, 107458), (8266, 77337), (8593, 74394), (11898, 53729), (12399, 51558), (17186, 37197), (24798, 25779)]