128395520

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^2\times {\mathrm{829}}^1$

素因数の和:872

約数の個数: 108

約数和(自身を含む): 338455740

約数和(自身を除く): 210060220

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, 220, 242, 256, 320, 352, 440, 484, 605, 640, 704, 829, 880, 968, 1210, 1280, 1408, 1658, 1760, 1936, 2420, 2816, 3316, 3520, 3872, 4145, 4840, 6632, 7040, 7744, 8290, 9119, 9680, 13264, 14080, 15488, 16580, 18238, 19360, 26528, 30976, 33160, 36476, 38720, 45595, 53056, 66320, 72952, 77440, 91190, 100309, 106112, 132640, 145904, 154880, 182380, 200618, 212224, 265280, 291808, 364760, 401236, 501545, 530560, 583616, 729520, 802472, 1003090, 1061120, 1167232, 1459040, 1604944, 2006180, 2334464, 2918080, 3209888, 4012360, 5836160, 6419776, 8024720, 11672320, 12839552, 16049440, 25679104, 32098880, 64197760, 128395520]

約数ペア:

[(1, 128395520), (2, 64197760), (4, 32098880), (5, 25679104), (8, 16049440), (10, 12839552), (11, 11672320), (16, 8024720), (20, 6419776), (22, 5836160), (32, 4012360), (40, 3209888), (44, 2918080), (55, 2334464), (64, 2006180), (80, 1604944), (88, 1459040), (110, 1167232), (121, 1061120), (128, 1003090), (160, 802472), (176, 729520), (220, 583616), (242, 530560), (256, 501545), (320, 401236), (352, 364760), (440, 291808), (484, 265280), (605, 212224), (640, 200618), (704, 182380), (829, 154880), (880, 145904), (968, 132640), (1210, 106112), (1280, 100309), (1408, 91190), (1658, 77440), (1760, 72952), (1936, 66320), (2420, 53056), (2816, 45595), (3316, 38720), (3520, 36476), (3872, 33160), (4145, 30976), (4840, 26528), (6632, 19360), (7040, 18238), (7744, 16580), (8290, 15488), (9119, 14080), (9680, 13264)]