28728840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1487}}^1$

素因数の和:1531

約数の個数: 128

約数和(自身を含む): 102850560

約数和(自身を除く): 74121720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 105, 115, 120, 138, 140, 161, 168, 184, 210, 230, 276, 280, 322, 345, 420, 460, 483, 552, 644, 690, 805, 840, 920, 966, 1288, 1380, 1487, 1610, 1932, 2415, 2760, 2974, 3220, 3864, 4461, 4830, 5948, 6440, 7435, 8922, 9660, 10409, 11896, 14870, 17844, 19320, 20818, 22305, 29740, 31227, 34201, 35688, 41636, 44610, 52045, 59480, 62454, 68402, 83272, 89220, 102603, 104090, 124908, 136804, 156135, 171005, 178440, 205206, 208180, 239407, 249816, 273608, 312270, 342010, 410412, 416360, 478814, 513015, 624540, 684020, 718221, 820824, 957628, 1026030, 1197035, 1249080, 1368040, 1436442, 1915256, 2052060, 2394070, 2872884, 3591105, 4104120, 4788140, 5745768, 7182210, 9576280, 14364420, 28728840]

約数ペア:

[(1, 28728840), (2, 14364420), (3, 9576280), (4, 7182210), (5, 5745768), (6, 4788140), (7, 4104120), (8, 3591105), (10, 2872884), (12, 2394070), (14, 2052060), (15, 1915256), (20, 1436442), (21, 1368040), (23, 1249080), (24, 1197035), (28, 1026030), (30, 957628), (35, 820824), (40, 718221), (42, 684020), (46, 624540), (56, 513015), (60, 478814), (69, 416360), (70, 410412), (84, 342010), (92, 312270), (105, 273608), (115, 249816), (120, 239407), (138, 208180), (140, 205206), (161, 178440), (168, 171005), (184, 156135), (210, 136804), (230, 124908), (276, 104090), (280, 102603), (322, 89220), (345, 83272), (420, 68402), (460, 62454), (483, 59480), (552, 52045), (644, 44610), (690, 41636), (805, 35688), (840, 34201), (920, 31227), (966, 29740), (1288, 22305), (1380, 20818), (1487, 19320), (1610, 17844), (1932, 14870), (2415, 11896), (2760, 10409), (2974, 9660), (3220, 8922), (3864, 7435), (4461, 6440), (4830, 5948)]