1720654845

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:260

約数の個数: 192

約数和(自身を含む): 3679635456

約数和(自身を除く): 1958980611

約数列:

[1, 3, 5, 7, 13, 15, 21, 31, 35, 37, 39, 49, 65, 91, 93, 105, 111, 147, 155, 157, 185, 195, 217, 245, 259, 273, 403, 455, 465, 471, 481, 555, 637, 651, 735, 777, 785, 1085, 1099, 1147, 1209, 1295, 1365, 1443, 1519, 1813, 1911, 2015, 2041, 2355, 2405, 2821, 3185, 3255, 3297, 3367, 3441, 3885, 4557, 4867, 5439, 5495, 5735, 5809, 6045, 6123, 7215, 7595, 7693, 8029, 8463, 9065, 9555, 10101, 10205, 14105, 14287, 14601, 14911, 16485, 16835, 17205, 17427, 19747, 22785, 23079, 23569, 24087, 24335, 27195, 29045, 30615, 34069, 38465, 40145, 40663, 42315, 42861, 44733, 50505, 56203, 59241, 63271, 70707, 71435, 73005, 74555, 75517, 87135, 98735, 100009, 102207, 104377, 115395, 117845, 120435, 121989, 168609, 170345, 180079, 189813, 203315, 214305, 223665, 226551, 238483, 281015, 284641, 296205, 300027, 313131, 316355, 353535, 377585, 442897, 500045, 511035, 521885, 528619, 540237, 609945, 715449, 730639, 843045, 853923, 900395, 949065, 1132755, 1192415, 1260553, 1328691, 1423205, 1500135, 1565655, 1585857, 2191917, 2214485, 2341027, 2643095, 2701185, 3100279, 3577245, 3653195, 3700333, 3781659, 4269615, 6302765, 6643455, 7023081, 7929285, 8823871, 9300837, 10959585, 11100999, 11705135, 15501395, 16387189, 18501665, 18908295, 26471613, 35115405, 44119355, 46504185, 49161567, 55504995, 81935945, 114710323, 132358065, 245807835, 344130969, 573551615, 1720654845]

約数ペア:

[(1, 1720654845), (3, 573551615), (5, 344130969), (7, 245807835), (13, 132358065), (15, 114710323), (21, 81935945), (31, 55504995), (35, 49161567), (37, 46504185), (39, 44119355), (49, 35115405), (65, 26471613), (91, 18908295), (93, 18501665), (105, 16387189), (111, 15501395), (147, 11705135), (155, 11100999), (157, 10959585), (185, 9300837), (195, 8823871), (217, 7929285), (245, 7023081), (259, 6643455), (273, 6302765), (403, 4269615), (455, 3781659), (465, 3700333), (471, 3653195), (481, 3577245), (555, 3100279), (637, 2701185), (651, 2643095), (735, 2341027), (777, 2214485), (785, 2191917), (1085, 1585857), (1099, 1565655), (1147, 1500135), (1209, 1423205), (1295, 1328691), (1365, 1260553), (1443, 1192415), (1519, 1132755), (1813, 949065), (1911, 900395), (2015, 853923), (2041, 843045), (2355, 730639), (2405, 715449), (2821, 609945), (3185, 540237), (3255, 528619), (3297, 521885), (3367, 511035), (3441, 500045), (3885, 442897), (4557, 377585), (4867, 353535), (5439, 316355), (5495, 313131), (5735, 300027), (5809, 296205), (6045, 284641), (6123, 281015), (7215, 238483), (7595, 226551), (7693, 223665), (8029, 214305), (8463, 203315), (9065, 189813), (9555, 180079), (10101, 170345), (10205, 168609), (14105, 121989), (14287, 120435), (14601, 117845), (14911, 115395), (16485, 104377), (16835, 102207), (17205, 100009), (17427, 98735), (19747, 87135), (22785, 75517), (23079, 74555), (23569, 73005), (24087, 71435), (24335, 70707), (27195, 63271), (29045, 59241), (30615, 56203), (34069, 50505), (38465, 44733), (40145, 42861), (40663, 42315)]