28499240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1$

素因数の和:535

約数の個数: 128

約数和(自身を含む): 84326400

約数和(自身を除く): 55827160

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 19, 20, 22, 28, 35, 38, 40, 44, 55, 56, 70, 76, 77, 88, 95, 110, 133, 140, 152, 154, 190, 209, 220, 266, 280, 308, 380, 385, 418, 440, 487, 532, 616, 665, 760, 770, 836, 974, 1045, 1064, 1330, 1463, 1540, 1672, 1948, 2090, 2435, 2660, 2926, 3080, 3409, 3896, 4180, 4870, 5320, 5357, 5852, 6818, 7315, 8360, 9253, 9740, 10714, 11704, 13636, 14630, 17045, 18506, 19480, 21428, 26785, 27272, 29260, 34090, 37012, 37499, 42856, 46265, 53570, 58520, 64771, 68180, 74024, 74998, 92530, 101783, 107140, 129542, 136360, 149996, 185060, 187495, 203566, 214280, 259084, 299992, 323855, 370120, 374990, 407132, 508915, 518168, 647710, 712481, 749980, 814264, 1017830, 1295420, 1424962, 1499960, 2035660, 2590840, 2849924, 3562405, 4071320, 5699848, 7124810, 14249620, 28499240]

約数ペア:

[(1, 28499240), (2, 14249620), (4, 7124810), (5, 5699848), (7, 4071320), (8, 3562405), (10, 2849924), (11, 2590840), (14, 2035660), (19, 1499960), (20, 1424962), (22, 1295420), (28, 1017830), (35, 814264), (38, 749980), (40, 712481), (44, 647710), (55, 518168), (56, 508915), (70, 407132), (76, 374990), (77, 370120), (88, 323855), (95, 299992), (110, 259084), (133, 214280), (140, 203566), (152, 187495), (154, 185060), (190, 149996), (209, 136360), (220, 129542), (266, 107140), (280, 101783), (308, 92530), (380, 74998), (385, 74024), (418, 68180), (440, 64771), (487, 58520), (532, 53570), (616, 46265), (665, 42856), (760, 37499), (770, 37012), (836, 34090), (974, 29260), (1045, 27272), (1064, 26785), (1330, 21428), (1463, 19480), (1540, 18506), (1672, 17045), (1948, 14630), (2090, 13636), (2435, 11704), (2660, 10714), (2926, 9740), (3080, 9253), (3409, 8360), (3896, 7315), (4180, 6818), (4870, 5852), (5320, 5357)]