68757780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:303

約数の個数: 192

約数和(自身を含む): 242726400

約数和(自身を除く): 173968620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 257, 260, 273, 294, 343, 364, 390, 420, 455, 490, 514, 546, 588, 637, 686, 735, 771, 780, 910, 980, 1028, 1029, 1092, 1274, 1285, 1365, 1372, 1470, 1542, 1715, 1799, 1820, 1911, 2058, 2548, 2570, 2730, 2940, 3084, 3185, 3341, 3430, 3598, 3822, 3855, 4116, 4459, 5140, 5145, 5397, 5460, 6370, 6682, 6860, 7196, 7644, 7710, 8918, 8995, 9555, 10023, 10290, 10794, 12593, 12740, 13364, 13377, 15420, 16705, 17836, 17990, 19110, 20046, 20580, 21588, 22295, 23387, 25186, 26754, 26985, 33410, 35980, 37779, 38220, 40092, 44590, 46774, 50115, 50372, 53508, 53970, 62965, 66820, 66885, 70161, 75558, 88151, 89180, 93548, 100230, 107940, 116935, 125930, 133770, 140322, 151116, 163709, 176302, 188895, 200460, 233870, 251860, 264453, 267540, 280644, 327418, 350805, 352604, 377790, 440755, 467740, 491127, 528906, 654836, 701610, 755580, 818545, 881510, 982254, 1057812, 1145963, 1322265, 1403220, 1637090, 1763020, 1964508, 2291926, 2455635, 2644530, 3274180, 3437889, 4583852, 4911270, 5289060, 5729815, 6875778, 9822540, 11459630, 13751556, 17189445, 22919260, 34378890, 68757780]

約数ペア:

[(1, 68757780), (2, 34378890), (3, 22919260), (4, 17189445), (5, 13751556), (6, 11459630), (7, 9822540), (10, 6875778), (12, 5729815), (13, 5289060), (14, 4911270), (15, 4583852), (20, 3437889), (21, 3274180), (26, 2644530), (28, 2455635), (30, 2291926), (35, 1964508), (39, 1763020), (42, 1637090), (49, 1403220), (52, 1322265), (60, 1145963), (65, 1057812), (70, 982254), (78, 881510), (84, 818545), (91, 755580), (98, 701610), (105, 654836), (130, 528906), (140, 491127), (147, 467740), (156, 440755), (182, 377790), (195, 352604), (196, 350805), (210, 327418), (245, 280644), (257, 267540), (260, 264453), (273, 251860), (294, 233870), (343, 200460), (364, 188895), (390, 176302), (420, 163709), (455, 151116), (490, 140322), (514, 133770), (546, 125930), (588, 116935), (637, 107940), (686, 100230), (735, 93548), (771, 89180), (780, 88151), (910, 75558), (980, 70161), (1028, 66885), (1029, 66820), (1092, 62965), (1274, 53970), (1285, 53508), (1365, 50372), (1372, 50115), (1470, 46774), (1542, 44590), (1715, 40092), (1799, 38220), (1820, 37779), (1911, 35980), (2058, 33410), (2548, 26985), (2570, 26754), (2730, 25186), (2940, 23387), (3084, 22295), (3185, 21588), (3341, 20580), (3430, 20046), (3598, 19110), (3822, 17990), (3855, 17836), (4116, 16705), (4459, 15420), (5140, 13377), (5145, 13364), (5397, 12740), (5460, 12593), (6370, 10794), (6682, 10290), (6860, 10023), (7196, 9555), (7644, 8995), (7710, 8918)]