64647660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1999}}^1$

素因数の和:2036

約数の個数: 144

約数和(自身を含む): 229824000

約数和(自身を除く): 165176340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 49, 55, 60, 66, 70, 77, 84, 98, 105, 110, 132, 140, 147, 154, 165, 196, 210, 220, 231, 245, 294, 308, 330, 385, 420, 462, 490, 539, 588, 660, 735, 770, 924, 980, 1078, 1155, 1470, 1540, 1617, 1999, 2156, 2310, 2695, 2940, 3234, 3998, 4620, 5390, 5997, 6468, 7996, 8085, 9995, 10780, 11994, 13993, 16170, 19990, 21989, 23988, 27986, 29985, 32340, 39980, 41979, 43978, 55972, 59970, 65967, 69965, 83958, 87956, 97951, 109945, 119940, 131934, 139930, 153923, 167916, 195902, 209895, 219890, 263868, 279860, 293853, 307846, 329835, 391804, 419790, 439780, 461769, 489755, 587706, 615692, 659670, 769615, 839580, 923538, 979510, 1077461, 1175412, 1319340, 1469265, 1539230, 1847076, 1959020, 2154922, 2308845, 2938530, 3078460, 3232383, 4309844, 4617690, 5387305, 5877060, 6464766, 9235380, 10774610, 12929532, 16161915, 21549220, 32323830, 64647660]

約数ペア:

[(1, 64647660), (2, 32323830), (3, 21549220), (4, 16161915), (5, 12929532), (6, 10774610), (7, 9235380), (10, 6464766), (11, 5877060), (12, 5387305), (14, 4617690), (15, 4309844), (20, 3232383), (21, 3078460), (22, 2938530), (28, 2308845), (30, 2154922), (33, 1959020), (35, 1847076), (42, 1539230), (44, 1469265), (49, 1319340), (55, 1175412), (60, 1077461), (66, 979510), (70, 923538), (77, 839580), (84, 769615), (98, 659670), (105, 615692), (110, 587706), (132, 489755), (140, 461769), (147, 439780), (154, 419790), (165, 391804), (196, 329835), (210, 307846), (220, 293853), (231, 279860), (245, 263868), (294, 219890), (308, 209895), (330, 195902), (385, 167916), (420, 153923), (462, 139930), (490, 131934), (539, 119940), (588, 109945), (660, 97951), (735, 87956), (770, 83958), (924, 69965), (980, 65967), (1078, 59970), (1155, 55972), (1470, 43978), (1540, 41979), (1617, 39980), (1999, 32340), (2156, 29985), (2310, 27986), (2695, 23988), (2940, 21989), (3234, 19990), (3998, 16170), (4620, 13993), (5390, 11994), (5997, 10780), (6468, 9995), (7996, 8085)]