28033280

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^2\times {\mathrm{181}}^1$

素因数の和:224

約数の個数: 108

約数和(自身を含む): 74215596

約数和(自身を除く): 46182316

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 128, 160, 176, 181, 220, 242, 256, 320, 352, 362, 440, 484, 605, 640, 704, 724, 880, 905, 968, 1210, 1280, 1408, 1448, 1760, 1810, 1936, 1991, 2420, 2816, 2896, 3520, 3620, 3872, 3982, 4840, 5792, 7040, 7240, 7744, 7964, 9680, 9955, 11584, 14080, 14480, 15488, 15928, 19360, 19910, 21901, 23168, 28960, 30976, 31856, 38720, 39820, 43802, 46336, 57920, 63712, 77440, 79640, 87604, 109505, 115840, 127424, 154880, 159280, 175208, 219010, 231680, 254848, 318560, 350416, 438020, 509696, 637120, 700832, 876040, 1274240, 1401664, 1752080, 2548480, 2803328, 3504160, 5606656, 7008320, 14016640, 28033280]

約数ペア:

[(1, 28033280), (2, 14016640), (4, 7008320), (5, 5606656), (8, 3504160), (10, 2803328), (11, 2548480), (16, 1752080), (20, 1401664), (22, 1274240), (32, 876040), (40, 700832), (44, 637120), (55, 509696), (64, 438020), (80, 350416), (88, 318560), (110, 254848), (121, 231680), (128, 219010), (160, 175208), (176, 159280), (181, 154880), (220, 127424), (242, 115840), (256, 109505), (320, 87604), (352, 79640), (362, 77440), (440, 63712), (484, 57920), (605, 46336), (640, 43802), (704, 39820), (724, 38720), (880, 31856), (905, 30976), (968, 28960), (1210, 23168), (1280, 21901), (1408, 19910), (1448, 19360), (1760, 15928), (1810, 15488), (1936, 14480), (1991, 14080), (2420, 11584), (2816, 9955), (2896, 9680), (3520, 7964), (3620, 7744), (3872, 7240), (3982, 7040), (4840, 5792)]