28607920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:131

約数の個数: 160

約数和(自身を含む): 80352000

約数和(自身を除く): 51744080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 29, 38, 40, 44, 55, 58, 59, 76, 80, 88, 95, 110, 116, 118, 145, 152, 176, 190, 209, 220, 232, 236, 290, 295, 304, 319, 380, 418, 440, 464, 472, 551, 580, 590, 638, 649, 760, 836, 880, 944, 1045, 1102, 1121, 1160, 1180, 1276, 1298, 1520, 1595, 1672, 1711, 2090, 2204, 2242, 2320, 2360, 2552, 2596, 2755, 3190, 3245, 3344, 3422, 4180, 4408, 4484, 4720, 5104, 5192, 5510, 5605, 6061, 6380, 6490, 6844, 8360, 8555, 8816, 8968, 10384, 11020, 11210, 12122, 12331, 12760, 12980, 13688, 16720, 17110, 17936, 18821, 22040, 22420, 24244, 24662, 25520, 25960, 27376, 30305, 32509, 34220, 37642, 44080, 44840, 48488, 49324, 51920, 60610, 61655, 65018, 68440, 75284, 89680, 94105, 96976, 98648, 121220, 123310, 130036, 136880, 150568, 162545, 188210, 197296, 242440, 246620, 260072, 301136, 325090, 357599, 376420, 484880, 493240, 520144, 650180, 715198, 752840, 986480, 1300360, 1430396, 1505680, 1787995, 2600720, 2860792, 3575990, 5721584, 7151980, 14303960, 28607920]

約数ペア:

[(1, 28607920), (2, 14303960), (4, 7151980), (5, 5721584), (8, 3575990), (10, 2860792), (11, 2600720), (16, 1787995), (19, 1505680), (20, 1430396), (22, 1300360), (29, 986480), (38, 752840), (40, 715198), (44, 650180), (55, 520144), (58, 493240), (59, 484880), (76, 376420), (80, 357599), (88, 325090), (95, 301136), (110, 260072), (116, 246620), (118, 242440), (145, 197296), (152, 188210), (176, 162545), (190, 150568), (209, 136880), (220, 130036), (232, 123310), (236, 121220), (290, 98648), (295, 96976), (304, 94105), (319, 89680), (380, 75284), (418, 68440), (440, 65018), (464, 61655), (472, 60610), (551, 51920), (580, 49324), (590, 48488), (638, 44840), (649, 44080), (760, 37642), (836, 34220), (880, 32509), (944, 30305), (1045, 27376), (1102, 25960), (1121, 25520), (1160, 24662), (1180, 24244), (1276, 22420), (1298, 22040), (1520, 18821), (1595, 17936), (1672, 17110), (1711, 16720), (2090, 13688), (2204, 12980), (2242, 12760), (2320, 12331), (2360, 12122), (2552, 11210), (2596, 11020), (2755, 10384), (3190, 8968), (3245, 8816), (3344, 8555), (3422, 8360), (4180, 6844), (4408, 6490), (4484, 6380), (4720, 6061), (5104, 5605), (5192, 5510)]