256737780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109717}}^1$

素因数の和:109745

約数の個数: 72

約数和(自身を含む): 838684392

約数和(自身を除く): 581946612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 109717, 219434, 329151, 438868, 548585, 658302, 987453, 1097170, 1316604, 1426321, 1645755, 1974906, 2194340, 2852642, 3291510, 3949812, 4278963, 4937265, 5705284, 6583020, 7131605, 8557926, 9874530, 12836889, 14263210, 17115852, 19749060, 21394815, 25673778, 28526420, 42789630, 51347556, 64184445, 85579260, 128368890, 256737780]

約数ペア:

[(1, 256737780), (2, 128368890), (3, 85579260), (4, 64184445), (5, 51347556), (6, 42789630), (9, 28526420), (10, 25673778), (12, 21394815), (13, 19749060), (15, 17115852), (18, 14263210), (20, 12836889), (26, 9874530), (30, 8557926), (36, 7131605), (39, 6583020), (45, 5705284), (52, 4937265), (60, 4278963), (65, 3949812), (78, 3291510), (90, 2852642), (117, 2194340), (130, 1974906), (156, 1645755), (180, 1426321), (195, 1316604), (234, 1097170), (260, 987453), (390, 658302), (468, 548585), (585, 438868), (780, 329151), (1170, 219434), (2340, 109717)]