31271240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:124

約数の個数: 192

約数和(自身を含む): 96526080

約数和(自身を除く): 65254840

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 71, 77, 88, 91, 104, 110, 121, 130, 140, 142, 143, 154, 182, 220, 242, 260, 280, 284, 286, 308, 355, 364, 385, 440, 455, 484, 497, 520, 568, 572, 605, 616, 710, 715, 728, 770, 781, 847, 910, 923, 968, 994, 1001, 1144, 1210, 1420, 1430, 1540, 1562, 1573, 1694, 1820, 1846, 1988, 2002, 2420, 2485, 2840, 2860, 3080, 3124, 3146, 3388, 3640, 3692, 3905, 3976, 4004, 4235, 4615, 4840, 4970, 5005, 5467, 5720, 6248, 6292, 6461, 6776, 7384, 7810, 7865, 8008, 8470, 8591, 9230, 9940, 10010, 10153, 10934, 11011, 12584, 12922, 15620, 15730, 16940, 17182, 18460, 19880, 20020, 20306, 21868, 22022, 25844, 27335, 31240, 31460, 32305, 33880, 34364, 36920, 40040, 40612, 42955, 43736, 44044, 50765, 51688, 54670, 55055, 60137, 62920, 64610, 68728, 71071, 81224, 85910, 88088, 101530, 109340, 110110, 111683, 120274, 129220, 142142, 171820, 203060, 218680, 220220, 223366, 240548, 258440, 284284, 300685, 343640, 355355, 406120, 440440, 446732, 481096, 558415, 568568, 601370, 710710, 781781, 893464, 1116830, 1202740, 1421420, 1563562, 2233660, 2405480, 2842840, 3127124, 3908905, 4467320, 6254248, 7817810, 15635620, 31271240]

約数ペア:

[(1, 31271240), (2, 15635620), (4, 7817810), (5, 6254248), (7, 4467320), (8, 3908905), (10, 3127124), (11, 2842840), (13, 2405480), (14, 2233660), (20, 1563562), (22, 1421420), (26, 1202740), (28, 1116830), (35, 893464), (40, 781781), (44, 710710), (52, 601370), (55, 568568), (56, 558415), (65, 481096), (70, 446732), (71, 440440), (77, 406120), (88, 355355), (91, 343640), (104, 300685), (110, 284284), (121, 258440), (130, 240548), (140, 223366), (142, 220220), (143, 218680), (154, 203060), (182, 171820), (220, 142142), (242, 129220), (260, 120274), (280, 111683), (284, 110110), (286, 109340), (308, 101530), (355, 88088), (364, 85910), (385, 81224), (440, 71071), (455, 68728), (484, 64610), (497, 62920), (520, 60137), (568, 55055), (572, 54670), (605, 51688), (616, 50765), (710, 44044), (715, 43736), (728, 42955), (770, 40612), (781, 40040), (847, 36920), (910, 34364), (923, 33880), (968, 32305), (994, 31460), (1001, 31240), (1144, 27335), (1210, 25844), (1420, 22022), (1430, 21868), (1540, 20306), (1562, 20020), (1573, 19880), (1694, 18460), (1820, 17182), (1846, 16940), (1988, 15730), (2002, 15620), (2420, 12922), (2485, 12584), (2840, 11011), (2860, 10934), (3080, 10153), (3124, 10010), (3146, 9940), (3388, 9230), (3640, 8591), (3692, 8470), (3905, 8008), (3976, 7865), (4004, 7810), (4235, 7384), (4615, 6776), (4840, 6461), (4970, 6292), (5005, 6248), (5467, 5720)]