28218112

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 62096720

約数和(自身を除く): 33878608

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 61, 64, 104, 122, 128, 139, 208, 244, 256, 278, 416, 488, 556, 793, 832, 976, 1112, 1586, 1664, 1807, 1952, 2224, 3172, 3328, 3614, 3904, 4448, 6344, 7228, 7808, 8479, 8896, 12688, 14456, 15616, 16958, 17792, 25376, 28912, 33916, 35584, 50752, 57824, 67832, 101504, 110227, 115648, 135664, 203008, 220454, 231296, 271328, 440908, 462592, 542656, 881816, 1085312, 1763632, 2170624, 3527264, 7054528, 14109056, 28218112]

約数ペア:

[(1, 28218112), (2, 14109056), (4, 7054528), (8, 3527264), (13, 2170624), (16, 1763632), (26, 1085312), (32, 881816), (52, 542656), (61, 462592), (64, 440908), (104, 271328), (122, 231296), (128, 220454), (139, 203008), (208, 135664), (244, 115648), (256, 110227), (278, 101504), (416, 67832), (488, 57824), (556, 50752), (793, 35584), (832, 33916), (976, 28912), (1112, 25376), (1586, 17792), (1664, 16958), (1807, 15616), (1952, 14456), (2224, 12688), (3172, 8896), (3328, 8479), (3614, 7808), (3904, 7228), (4448, 6344)]