78080940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2052

約数の個数: 144

約数和(自身を含む): 279552000

約数和(自身を除く): 201471060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 434, 465, 558, 620, 630, 651, 868, 930, 1085, 1116, 1260, 1302, 1395, 1860, 1953, 1999, 2170, 2604, 2790, 3255, 3906, 3998, 4340, 5580, 5997, 6510, 7812, 7996, 9765, 9995, 11994, 13020, 13993, 17991, 19530, 19990, 23988, 27986, 29985, 35982, 39060, 39980, 41979, 55972, 59970, 61969, 69965, 71964, 83958, 89955, 119940, 123938, 125937, 139930, 167916, 179910, 185907, 209895, 247876, 251874, 279860, 309845, 359820, 371814, 419790, 433783, 503748, 557721, 619690, 629685, 743628, 839580, 867566, 929535, 1115442, 1239380, 1259370, 1301349, 1735132, 1859070, 2168915, 2230884, 2518740, 2602698, 2788605, 3718140, 3904047, 4337830, 5205396, 5577210, 6506745, 7808094, 8675660, 11154420, 13013490, 15616188, 19520235, 26026980, 39040470, 78080940]

約数ペア:

[(1, 78080940), (2, 39040470), (3, 26026980), (4, 19520235), (5, 15616188), (6, 13013490), (7, 11154420), (9, 8675660), (10, 7808094), (12, 6506745), (14, 5577210), (15, 5205396), (18, 4337830), (20, 3904047), (21, 3718140), (28, 2788605), (30, 2602698), (31, 2518740), (35, 2230884), (36, 2168915), (42, 1859070), (45, 1735132), (60, 1301349), (62, 1259370), (63, 1239380), (70, 1115442), (84, 929535), (90, 867566), (93, 839580), (105, 743628), (124, 629685), (126, 619690), (140, 557721), (155, 503748), (180, 433783), (186, 419790), (210, 371814), (217, 359820), (252, 309845), (279, 279860), (310, 251874), (315, 247876), (372, 209895), (420, 185907), (434, 179910), (465, 167916), (558, 139930), (620, 125937), (630, 123938), (651, 119940), (868, 89955), (930, 83958), (1085, 71964), (1116, 69965), (1260, 61969), (1302, 59970), (1395, 55972), (1860, 41979), (1953, 39980), (1999, 39060), (2170, 35982), (2604, 29985), (2790, 27986), (3255, 23988), (3906, 19990), (3998, 19530), (4340, 17991), (5580, 13993), (5997, 13020), (6510, 11994), (7812, 9995), (7996, 9765)]