20780370

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17761}}^1$

素因数の和:17787

約数の個数: 48

約数和(自身を含む): 58188312

約数和(自身を除く): 37407942

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 17761, 35522, 53283, 88805, 106566, 159849, 177610, 230893, 266415, 319698, 461786, 532830, 692679, 799245, 1154465, 1385358, 1598490, 2078037, 2308930, 3463395, 4156074, 6926790, 10390185, 20780370]

約数ペア:

[(1, 20780370), (2, 10390185), (3, 6926790), (5, 4156074), (6, 3463395), (9, 2308930), (10, 2078037), (13, 1598490), (15, 1385358), (18, 1154465), (26, 799245), (30, 692679), (39, 532830), (45, 461786), (65, 319698), (78, 266415), (90, 230893), (117, 177610), (130, 159849), (195, 106566), (234, 88805), (390, 53283), (585, 35522), (1170, 17761)]