18843136

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1$

素因数の和:199

約数の個数: 80

約数和(自身を含む): 42966000

約数和(自身を除く): 24122864

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 128, 149, 152, 208, 247, 256, 298, 304, 416, 494, 512, 596, 608, 832, 988, 1192, 1216, 1664, 1937, 1976, 2384, 2432, 2831, 3328, 3874, 3952, 4768, 4864, 5662, 6656, 7748, 7904, 9536, 9728, 11324, 15496, 15808, 19072, 22648, 30992, 31616, 36803, 38144, 45296, 61984, 63232, 73606, 76288, 90592, 123968, 126464, 147212, 181184, 247936, 294424, 362368, 495872, 588848, 724736, 991744, 1177696, 1449472, 2355392, 4710784, 9421568, 18843136]

約数ペア:

[(1, 18843136), (2, 9421568), (4, 4710784), (8, 2355392), (13, 1449472), (16, 1177696), (19, 991744), (26, 724736), (32, 588848), (38, 495872), (52, 362368), (64, 294424), (76, 247936), (104, 181184), (128, 147212), (149, 126464), (152, 123968), (208, 90592), (247, 76288), (256, 73606), (298, 63232), (304, 61984), (416, 45296), (494, 38144), (512, 36803), (596, 31616), (608, 30992), (832, 22648), (988, 19072), (1192, 15808), (1216, 15496), (1664, 11324), (1937, 9728), (1976, 9536), (2384, 7904), (2432, 7748), (2831, 6656), (3328, 5662), (3874, 4864), (3952, 4768)]