18920407968

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{77563}}^1$

素因数の和:77608

約数の個数: 216

約数和(自身を含む): 67590510624

約数和(自身を除く): 48670102656

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 24, 28, 32, 33, 36, 42, 44, 48, 56, 63, 66, 72, 77, 84, 88, 96, 99, 112, 121, 126, 132, 144, 154, 168, 176, 198, 224, 231, 242, 252, 264, 288, 308, 336, 352, 363, 396, 462, 484, 504, 528, 616, 672, 693, 726, 792, 847, 924, 968, 1008, 1056, 1089, 1232, 1386, 1452, 1584, 1694, 1848, 1936, 2016, 2178, 2464, 2541, 2772, 2904, 3168, 3388, 3696, 3872, 4356, 5082, 5544, 5808, 6776, 7392, 7623, 8712, 10164, 11088, 11616, 13552, 15246, 17424, 20328, 22176, 27104, 30492, 34848, 40656, 60984, 77563, 81312, 121968, 155126, 232689, 243936, 310252, 465378, 542941, 620504, 698067, 853193, 930756, 1085882, 1241008, 1396134, 1628823, 1706386, 1861512, 2171764, 2482016, 2559579, 2792268, 3257646, 3412772, 3723024, 4343528, 4886469, 5119158, 5584536, 5972351, 6515292, 6825544, 7446048, 7678737, 8687056, 9385123, 9772938, 10238316, 11169072, 11944702, 13030584, 13651088, 15357474, 17374112, 17917053, 18770246, 19545876, 20476632, 22338144, 23889404, 26061168, 27302176, 28155369, 30714948, 35834106, 37540492, 39091752, 40953264, 47778808, 52122336, 53751159, 56310738, 61429896, 65695861, 71668212, 75080984, 78183504, 81906528, 84466107, 95557616, 107502318, 112621476, 122859792, 131391722, 143336424, 150161968, 156367008, 168932214, 191115232, 197087583, 215004636, 225242952, 245719584, 262783444, 286672848, 300323936, 337864428, 394175166, 430009272, 450485904, 525566888, 573345696, 591262749, 675728856, 788350332, 860018544, 900971808, 1051133776, 1182525498, 1351457712, 1576700664, 1720037088, 2102267552, 2365050996, 2702915424, 3153401328, 4730101992, 6306802656, 9460203984, 18920407968]

約数ペア:

[(1, 18920407968), (2, 9460203984), (3, 6306802656), (4, 4730101992), (6, 3153401328), (7, 2702915424), (8, 2365050996), (9, 2102267552), (11, 1720037088), (12, 1576700664), (14, 1351457712), (16, 1182525498), (18, 1051133776), (21, 900971808), (22, 860018544), (24, 788350332), (28, 675728856), (32, 591262749), (33, 573345696), (36, 525566888), (42, 450485904), (44, 430009272), (48, 394175166), (56, 337864428), (63, 300323936), (66, 286672848), (72, 262783444), (77, 245719584), (84, 225242952), (88, 215004636), (96, 197087583), (99, 191115232), (112, 168932214), (121, 156367008), (126, 150161968), (132, 143336424), (144, 131391722), (154, 122859792), (168, 112621476), (176, 107502318), (198, 95557616), (224, 84466107), (231, 81906528), (242, 78183504), (252, 75080984), (264, 71668212), (288, 65695861), (308, 61429896), (336, 56310738), (352, 53751159), (363, 52122336), (396, 47778808), (462, 40953264), (484, 39091752), (504, 37540492), (528, 35834106), (616, 30714948), (672, 28155369), (693, 27302176), (726, 26061168), (792, 23889404), (847, 22338144), (924, 20476632), (968, 19545876), (1008, 18770246), (1056, 17917053), (1089, 17374112), (1232, 15357474), (1386, 13651088), (1452, 13030584), (1584, 11944702), (1694, 11169072), (1848, 10238316), (1936, 9772938), (2016, 9385123), (2178, 8687056), (2464, 7678737), (2541, 7446048), (2772, 6825544), (2904, 6515292), (3168, 5972351), (3388, 5584536), (3696, 5119158), (3872, 4886469), (4356, 4343528), (5082, 3723024), (5544, 3412772), (5808, 3257646), (6776, 2792268), (7392, 2559579), (7623, 2482016), (8712, 2171764), (10164, 1861512), (11088, 1706386), (11616, 1628823), (13552, 1396134), (15246, 1241008), (17424, 1085882), (20328, 930756), (22176, 853193), (27104, 698067), (30492, 620504), (34848, 542941), (40656, 465378), (60984, 310252), (77563, 243936), (81312, 232689), (121968, 155126)]