81761778

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1327}}^1$

素因数の和:1508

約数の個数: 64

約数和(自身を含む): 209080320

約数和(自身を除く): 127318542

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 163, 189, 326, 378, 489, 978, 1141, 1327, 1467, 2282, 2654, 2934, 3423, 3981, 4401, 6846, 7962, 8802, 9289, 10269, 11943, 18578, 20538, 23886, 27867, 30807, 35829, 55734, 61614, 71658, 83601, 167202, 216301, 250803, 432602, 501606, 648903, 1297806, 1514107, 1946709, 3028214, 3893418, 4542321, 5840127, 9084642, 11680254, 13626963, 27253926, 40880889, 81761778]

約数ペア:

[(1, 81761778), (2, 40880889), (3, 27253926), (6, 13626963), (7, 11680254), (9, 9084642), (14, 5840127), (18, 4542321), (21, 3893418), (27, 3028214), (42, 1946709), (54, 1514107), (63, 1297806), (126, 648903), (163, 501606), (189, 432602), (326, 250803), (378, 216301), (489, 167202), (978, 83601), (1141, 71658), (1327, 61614), (1467, 55734), (2282, 35829), (2654, 30807), (2934, 27867), (3423, 23886), (3981, 20538), (4401, 18578), (6846, 11943), (7962, 10269), (8802, 9289)]