256183620

素因数分解:

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

素因数の和:183

約数の個数: 216

約数和(自身を含む): 913958976

約数和(自身を除く): 657775356

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 71, 77, 84, 105, 110, 121, 132, 140, 142, 154, 165, 210, 213, 220, 231, 242, 284, 308, 330, 355, 363, 385, 420, 426, 462, 484, 497, 605, 660, 710, 726, 770, 781, 847, 852, 924, 994, 1065, 1155, 1210, 1420, 1452, 1491, 1540, 1562, 1694, 1815, 1988, 2130, 2310, 2343, 2420, 2485, 2541, 2982, 3124, 3388, 3630, 3905, 4235, 4260, 4620, 4686, 4970, 5041, 5082, 5467, 5964, 7260, 7455, 7810, 8470, 8591, 9372, 9940, 10082, 10164, 10934, 11715, 12705, 14910, 15123, 15620, 16401, 16940, 17182, 20164, 21868, 23430, 25205, 25410, 25773, 27335, 29820, 30246, 32802, 34364, 35287, 42955, 46860, 50410, 50820, 51546, 54670, 55451, 60137, 60492, 65604, 70574, 75615, 82005, 85910, 100820, 103092, 105861, 109340, 110902, 120274, 128865, 141148, 151230, 164010, 166353, 171820, 176435, 180411, 211722, 221804, 240548, 257730, 277255, 300685, 302460, 328020, 332706, 352870, 360822, 388157, 423444, 515460, 529305, 554510, 601370, 609961, 665412, 705740, 721644, 776314, 831765, 902055, 1058610, 1109020, 1164471, 1202740, 1219922, 1552628, 1663530, 1804110, 1829883, 1940785, 2117220, 2328942, 2439844, 3049805, 3327060, 3608220, 3659766, 3881570, 4269727, 4657884, 5822355, 6099610, 7319532, 7763140, 8539454, 9149415, 11644710, 12199220, 12809181, 17078908, 18298830, 21348635, 23289420, 25618362, 36597660, 42697270, 51236724, 64045905, 85394540, 128091810, 256183620]

約数ペア:

[(1, 256183620), (2, 128091810), (3, 85394540), (4, 64045905), (5, 51236724), (6, 42697270), (7, 36597660), (10, 25618362), (11, 23289420), (12, 21348635), (14, 18298830), (15, 17078908), (20, 12809181), (21, 12199220), (22, 11644710), (28, 9149415), (30, 8539454), (33, 7763140), (35, 7319532), (42, 6099610), (44, 5822355), (55, 4657884), (60, 4269727), (66, 3881570), (70, 3659766), (71, 3608220), (77, 3327060), (84, 3049805), (105, 2439844), (110, 2328942), (121, 2117220), (132, 1940785), (140, 1829883), (142, 1804110), (154, 1663530), (165, 1552628), (210, 1219922), (213, 1202740), (220, 1164471), (231, 1109020), (242, 1058610), (284, 902055), (308, 831765), (330, 776314), (355, 721644), (363, 705740), (385, 665412), (420, 609961), (426, 601370), (462, 554510), (484, 529305), (497, 515460), (605, 423444), (660, 388157), (710, 360822), (726, 352870), (770, 332706), (781, 328020), (847, 302460), (852, 300685), (924, 277255), (994, 257730), (1065, 240548), (1155, 221804), (1210, 211722), (1420, 180411), (1452, 176435), (1491, 171820), (1540, 166353), (1562, 164010), (1694, 151230), (1815, 141148), (1988, 128865), (2130, 120274), (2310, 110902), (2343, 109340), (2420, 105861), (2485, 103092), (2541, 100820), (2982, 85910), (3124, 82005), (3388, 75615), (3630, 70574), (3905, 65604), (4235, 60492), (4260, 60137), (4620, 55451), (4686, 54670), (4970, 51546), (5041, 50820), (5082, 50410), (5467, 46860), (5964, 42955), (7260, 35287), (7455, 34364), (7810, 32802), (8470, 30246), (8591, 29820), (9372, 27335), (9940, 25773), (10082, 25410), (10164, 25205), (10934, 23430), (11715, 21868), (12705, 20164), (14910, 17182), (15123, 16940), (15620, 16401)]