666941440

素因数分解:

$2^{11}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:260

約数の個数: 192

約数和(自身を含む): 1811496960

約数和(自身を除く): 1144555520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 128, 155, 160, 176, 191, 220, 248, 256, 310, 320, 341, 352, 382, 440, 496, 512, 620, 640, 682, 704, 764, 880, 955, 992, 1024, 1240, 1280, 1364, 1408, 1528, 1705, 1760, 1910, 1984, 2048, 2101, 2480, 2560, 2728, 2816, 3056, 3410, 3520, 3820, 3968, 4202, 4960, 5120, 5456, 5632, 5921, 6112, 6820, 7040, 7640, 7936, 8404, 9920, 10240, 10505, 10912, 11264, 11842, 12224, 13640, 14080, 15280, 15872, 16808, 19840, 21010, 21824, 22528, 23684, 24448, 27280, 28160, 29605, 30560, 31744, 33616, 39680, 42020, 43648, 47368, 48896, 54560, 56320, 59210, 61120, 63488, 65131, 67232, 79360, 84040, 87296, 94736, 97792, 109120, 112640, 118420, 122240, 130262, 134464, 158720, 168080, 174592, 189472, 195584, 218240, 236840, 244480, 260524, 268928, 317440, 325655, 336160, 349184, 378944, 391168, 436480, 473680, 488960, 521048, 537856, 651310, 672320, 698368, 757888, 872960, 947360, 977920, 1042096, 1075712, 1302620, 1344640, 1515776, 1745920, 1894720, 1955840, 2084192, 2151424, 2605240, 2689280, 3031552, 3491840, 3789440, 4168384, 4302848, 5210480, 5378560, 6063104, 7578880, 8336768, 10420960, 10757120, 12126208, 15157760, 16673536, 20841920, 21514240, 30315520, 33347072, 41683840, 60631040, 66694144, 83367680, 133388288, 166735360, 333470720, 666941440]

約数ペア:

[(1, 666941440), (2, 333470720), (4, 166735360), (5, 133388288), (8, 83367680), (10, 66694144), (11, 60631040), (16, 41683840), (20, 33347072), (22, 30315520), (31, 21514240), (32, 20841920), (40, 16673536), (44, 15157760), (55, 12126208), (62, 10757120), (64, 10420960), (80, 8336768), (88, 7578880), (110, 6063104), (124, 5378560), (128, 5210480), (155, 4302848), (160, 4168384), (176, 3789440), (191, 3491840), (220, 3031552), (248, 2689280), (256, 2605240), (310, 2151424), (320, 2084192), (341, 1955840), (352, 1894720), (382, 1745920), (440, 1515776), (496, 1344640), (512, 1302620), (620, 1075712), (640, 1042096), (682, 977920), (704, 947360), (764, 872960), (880, 757888), (955, 698368), (992, 672320), (1024, 651310), (1240, 537856), (1280, 521048), (1364, 488960), (1408, 473680), (1528, 436480), (1705, 391168), (1760, 378944), (1910, 349184), (1984, 336160), (2048, 325655), (2101, 317440), (2480, 268928), (2560, 260524), (2728, 244480), (2816, 236840), (3056, 218240), (3410, 195584), (3520, 189472), (3820, 174592), (3968, 168080), (4202, 158720), (4960, 134464), (5120, 130262), (5456, 122240), (5632, 118420), (5921, 112640), (6112, 109120), (6820, 97792), (7040, 94736), (7640, 87296), (7936, 84040), (8404, 79360), (9920, 67232), (10240, 65131), (10505, 63488), (10912, 61120), (11264, 59210), (11842, 56320), (12224, 54560), (13640, 48896), (14080, 47368), (15280, 43648), (15872, 42020), (16808, 39680), (19840, 33616), (21010, 31744), (21824, 30560), (22528, 29605), (23684, 28160), (24448, 27280)]