28182880

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:332

約数の個数: 96

約数和(自身を含む): 74027520

約数和(自身を除く): 45844640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 67, 80, 88, 110, 134, 160, 176, 220, 239, 268, 335, 352, 440, 478, 536, 670, 737, 880, 956, 1072, 1195, 1340, 1474, 1760, 1912, 2144, 2390, 2629, 2680, 2948, 3685, 3824, 4780, 5258, 5360, 5896, 7370, 7648, 9560, 10516, 10720, 11792, 13145, 14740, 16013, 19120, 21032, 23584, 26290, 29480, 32026, 38240, 42064, 52580, 58960, 64052, 80065, 84128, 105160, 117920, 128104, 160130, 176143, 210320, 256208, 320260, 352286, 420640, 512416, 640520, 704572, 880715, 1281040, 1409144, 1761430, 2562080, 2818288, 3522860, 5636576, 7045720, 14091440, 28182880]

約数ペア:

[(1, 28182880), (2, 14091440), (4, 7045720), (5, 5636576), (8, 3522860), (10, 2818288), (11, 2562080), (16, 1761430), (20, 1409144), (22, 1281040), (32, 880715), (40, 704572), (44, 640520), (55, 512416), (67, 420640), (80, 352286), (88, 320260), (110, 256208), (134, 210320), (160, 176143), (176, 160130), (220, 128104), (239, 117920), (268, 105160), (335, 84128), (352, 80065), (440, 64052), (478, 58960), (536, 52580), (670, 42064), (737, 38240), (880, 32026), (956, 29480), (1072, 26290), (1195, 23584), (1340, 21032), (1474, 19120), (1760, 16013), (1912, 14740), (2144, 13145), (2390, 11792), (2629, 10720), (2680, 10516), (2948, 9560), (3685, 7648), (3824, 7370), (4780, 5896), (5258, 5360)]