171991820

素因数分解:

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

素因数の和:133

約数の個数: 192

約数和(自身を含む): 495839232

約数和(自身を除く): 323847412

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 71, 77, 91, 110, 121, 130, 140, 142, 143, 154, 182, 220, 242, 260, 284, 286, 308, 355, 364, 385, 455, 484, 497, 572, 605, 710, 715, 770, 781, 847, 910, 923, 994, 1001, 1210, 1331, 1420, 1430, 1540, 1562, 1573, 1694, 1820, 1846, 1988, 2002, 2420, 2485, 2662, 2860, 3124, 3146, 3388, 3692, 3905, 4004, 4235, 4615, 4970, 5005, 5324, 5467, 6292, 6461, 6655, 7810, 7865, 8470, 8591, 9230, 9317, 9940, 10010, 10153, 10934, 11011, 12922, 13310, 15620, 15730, 16940, 17182, 17303, 18460, 18634, 20020, 20306, 21868, 22022, 25844, 26620, 27335, 31460, 32305, 34364, 34606, 37268, 40612, 42955, 44044, 46585, 50765, 54670, 55055, 60137, 64610, 69212, 71071, 85910, 86515, 93170, 94501, 101530, 109340, 110110, 111683, 120274, 121121, 129220, 142142, 171820, 173030, 186340, 189002, 203060, 220220, 223366, 240548, 242242, 284284, 300685, 346060, 355355, 378004, 446732, 472505, 484484, 558415, 601370, 605605, 661507, 710710, 781781, 945010, 1116830, 1202740, 1211210, 1228513, 1323014, 1421420, 1563562, 1890020, 2233660, 2422420, 2457026, 2646028, 3127124, 3307535, 3908905, 4914052, 6142565, 6615070, 7817810, 8599591, 12285130, 13230140, 15635620, 17199182, 24570260, 34398364, 42997955, 85995910, 171991820]

約数ペア:

[(1, 171991820), (2, 85995910), (4, 42997955), (5, 34398364), (7, 24570260), (10, 17199182), (11, 15635620), (13, 13230140), (14, 12285130), (20, 8599591), (22, 7817810), (26, 6615070), (28, 6142565), (35, 4914052), (44, 3908905), (52, 3307535), (55, 3127124), (65, 2646028), (70, 2457026), (71, 2422420), (77, 2233660), (91, 1890020), (110, 1563562), (121, 1421420), (130, 1323014), (140, 1228513), (142, 1211210), (143, 1202740), (154, 1116830), (182, 945010), (220, 781781), (242, 710710), (260, 661507), (284, 605605), (286, 601370), (308, 558415), (355, 484484), (364, 472505), (385, 446732), (455, 378004), (484, 355355), (497, 346060), (572, 300685), (605, 284284), (710, 242242), (715, 240548), (770, 223366), (781, 220220), (847, 203060), (910, 189002), (923, 186340), (994, 173030), (1001, 171820), (1210, 142142), (1331, 129220), (1420, 121121), (1430, 120274), (1540, 111683), (1562, 110110), (1573, 109340), (1694, 101530), (1820, 94501), (1846, 93170), (1988, 86515), (2002, 85910), (2420, 71071), (2485, 69212), (2662, 64610), (2860, 60137), (3124, 55055), (3146, 54670), (3388, 50765), (3692, 46585), (3905, 44044), (4004, 42955), (4235, 40612), (4615, 37268), (4970, 34606), (5005, 34364), (5324, 32305), (5467, 31460), (6292, 27335), (6461, 26620), (6655, 25844), (7810, 22022), (7865, 21868), (8470, 20306), (8591, 20020), (9230, 18634), (9317, 18460), (9940, 17303), (10010, 17182), (10153, 16940), (10934, 15730), (11011, 15620), (12922, 13310)]