68278140

素因数分解:

$2^2\times 3^7\times 5^1\times 7^1\times {\mathrm{223}}^1$

素因数の和:260

約数の個数: 192

約数和(自身を含む): 246865920

約数和(自身を除く): 178587780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 223, 243, 252, 270, 315, 324, 378, 405, 420, 446, 486, 540, 567, 630, 669, 729, 756, 810, 892, 945, 972, 1115, 1134, 1215, 1260, 1338, 1458, 1561, 1620, 1701, 1890, 2007, 2187, 2230, 2268, 2430, 2676, 2835, 2916, 3122, 3345, 3402, 3645, 3780, 4014, 4374, 4460, 4683, 4860, 5103, 5670, 6021, 6244, 6690, 6804, 7290, 7805, 8028, 8505, 8748, 9366, 10035, 10206, 10935, 11340, 12042, 13380, 14049, 14580, 15309, 15610, 17010, 18063, 18732, 20070, 20412, 21870, 23415, 24084, 25515, 28098, 30105, 30618, 31220, 34020, 36126, 40140, 42147, 43740, 46830, 51030, 54189, 56196, 60210, 61236, 70245, 72252, 76545, 84294, 90315, 93660, 102060, 108378, 120420, 126441, 140490, 153090, 162567, 168588, 180630, 210735, 216756, 252882, 270945, 280980, 306180, 325134, 361260, 379323, 421470, 487701, 505764, 541890, 632205, 650268, 758646, 812835, 842940, 975402, 1083780, 1137969, 1264410, 1517292, 1625670, 1896615, 1950804, 2275938, 2438505, 2528820, 3251340, 3413907, 3793230, 4551876, 4877010, 5689845, 6827814, 7586460, 9754020, 11379690, 13655628, 17069535, 22759380, 34139070, 68278140]

約数ペア:

[(1, 68278140), (2, 34139070), (3, 22759380), (4, 17069535), (5, 13655628), (6, 11379690), (7, 9754020), (9, 7586460), (10, 6827814), (12, 5689845), (14, 4877010), (15, 4551876), (18, 3793230), (20, 3413907), (21, 3251340), (27, 2528820), (28, 2438505), (30, 2275938), (35, 1950804), (36, 1896615), (42, 1625670), (45, 1517292), (54, 1264410), (60, 1137969), (63, 1083780), (70, 975402), (81, 842940), (84, 812835), (90, 758646), (105, 650268), (108, 632205), (126, 541890), (135, 505764), (140, 487701), (162, 421470), (180, 379323), (189, 361260), (210, 325134), (223, 306180), (243, 280980), (252, 270945), (270, 252882), (315, 216756), (324, 210735), (378, 180630), (405, 168588), (420, 162567), (446, 153090), (486, 140490), (540, 126441), (567, 120420), (630, 108378), (669, 102060), (729, 93660), (756, 90315), (810, 84294), (892, 76545), (945, 72252), (972, 70245), (1115, 61236), (1134, 60210), (1215, 56196), (1260, 54189), (1338, 51030), (1458, 46830), (1561, 43740), (1620, 42147), (1701, 40140), (1890, 36126), (2007, 34020), (2187, 31220), (2230, 30618), (2268, 30105), (2430, 28098), (2676, 25515), (2835, 24084), (2916, 23415), (3122, 21870), (3345, 20412), (3402, 20070), (3645, 18732), (3780, 18063), (4014, 17010), (4374, 15610), (4460, 15309), (4683, 14580), (4860, 14049), (5103, 13380), (5670, 12042), (6021, 11340), (6244, 10935), (6690, 10206), (6804, 10035), (7290, 9366), (7805, 8748), (8028, 8505)]