28135884

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:128

約数の個数: 144

約数和(自身を含む): 85272320

約数和(自身を除く): 57136436

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 19, 21, 28, 34, 38, 42, 51, 57, 61, 68, 76, 84, 102, 114, 119, 122, 133, 183, 204, 228, 238, 244, 266, 289, 323, 357, 366, 399, 427, 476, 532, 578, 646, 714, 732, 798, 854, 867, 969, 1037, 1156, 1159, 1281, 1292, 1428, 1596, 1708, 1734, 1938, 2023, 2074, 2261, 2318, 2562, 3111, 3468, 3477, 3876, 4046, 4148, 4522, 4636, 5124, 5491, 6069, 6222, 6783, 6954, 7259, 8092, 8113, 9044, 10982, 12138, 12444, 13566, 13908, 14518, 16226, 16473, 17629, 19703, 21777, 21964, 24276, 24339, 27132, 29036, 32452, 32946, 35258, 38437, 39406, 43554, 48678, 52887, 59109, 65892, 70516, 76874, 78812, 87108, 97356, 105774, 115311, 118218, 123403, 137921, 153748, 211548, 230622, 236436, 246806, 275842, 334951, 370209, 413763, 461244, 493612, 551684, 669902, 740418, 827526, 1004853, 1339804, 1480836, 1655052, 2009706, 2344657, 4019412, 4689314, 7033971, 9378628, 14067942, 28135884]

約数ペア:

[(1, 28135884), (2, 14067942), (3, 9378628), (4, 7033971), (6, 4689314), (7, 4019412), (12, 2344657), (14, 2009706), (17, 1655052), (19, 1480836), (21, 1339804), (28, 1004853), (34, 827526), (38, 740418), (42, 669902), (51, 551684), (57, 493612), (61, 461244), (68, 413763), (76, 370209), (84, 334951), (102, 275842), (114, 246806), (119, 236436), (122, 230622), (133, 211548), (183, 153748), (204, 137921), (228, 123403), (238, 118218), (244, 115311), (266, 105774), (289, 97356), (323, 87108), (357, 78812), (366, 76874), (399, 70516), (427, 65892), (476, 59109), (532, 52887), (578, 48678), (646, 43554), (714, 39406), (732, 38437), (798, 35258), (854, 32946), (867, 32452), (969, 29036), (1037, 27132), (1156, 24339), (1159, 24276), (1281, 21964), (1292, 21777), (1428, 19703), (1596, 17629), (1708, 16473), (1734, 16226), (1938, 14518), (2023, 13908), (2074, 13566), (2261, 12444), (2318, 12138), (2562, 10982), (3111, 9044), (3468, 8113), (3477, 8092), (3876, 7259), (4046, 6954), (4148, 6783), (4522, 6222), (4636, 6069), (5124, 5491)]