11112920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:145

約数の個数: 128

約数和(自身を含む): 31933440

約数和(自身を除く): 20820520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 43, 52, 56, 65, 70, 71, 86, 91, 104, 130, 140, 142, 172, 182, 215, 260, 280, 284, 301, 344, 355, 364, 430, 455, 497, 520, 559, 568, 602, 710, 728, 860, 910, 923, 994, 1118, 1204, 1420, 1505, 1720, 1820, 1846, 1988, 2236, 2408, 2485, 2795, 2840, 3010, 3053, 3640, 3692, 3913, 3976, 4472, 4615, 4970, 5590, 6020, 6106, 6461, 7384, 7826, 9230, 9940, 11180, 12040, 12212, 12922, 15265, 15652, 18460, 19565, 19880, 21371, 22360, 24424, 25844, 30530, 31304, 32305, 36920, 39130, 39689, 42742, 51688, 61060, 64610, 78260, 79378, 85484, 106855, 122120, 129220, 156520, 158756, 170968, 198445, 213710, 258440, 277823, 317512, 396890, 427420, 555646, 793780, 854840, 1111292, 1389115, 1587560, 2222584, 2778230, 5556460, 11112920]

約数ペア:

[(1, 11112920), (2, 5556460), (4, 2778230), (5, 2222584), (7, 1587560), (8, 1389115), (10, 1111292), (13, 854840), (14, 793780), (20, 555646), (26, 427420), (28, 396890), (35, 317512), (40, 277823), (43, 258440), (52, 213710), (56, 198445), (65, 170968), (70, 158756), (71, 156520), (86, 129220), (91, 122120), (104, 106855), (130, 85484), (140, 79378), (142, 78260), (172, 64610), (182, 61060), (215, 51688), (260, 42742), (280, 39689), (284, 39130), (301, 36920), (344, 32305), (355, 31304), (364, 30530), (430, 25844), (455, 24424), (497, 22360), (520, 21371), (559, 19880), (568, 19565), (602, 18460), (710, 15652), (728, 15265), (860, 12922), (910, 12212), (923, 12040), (994, 11180), (1118, 9940), (1204, 9230), (1420, 7826), (1505, 7384), (1720, 6461), (1820, 6106), (1846, 6020), (1988, 5590), (2236, 4970), (2408, 4615), (2485, 4472), (2795, 3976), (2840, 3913), (3010, 3692), (3053, 3640)]