78106980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{857}}^1$

素因数の和:914

約数の個数: 144

約数和(自身を含む): 262918656

約数和(自身を除く): 184811676

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 49, 60, 62, 70, 84, 93, 98, 105, 124, 140, 147, 155, 186, 196, 210, 217, 245, 294, 310, 372, 420, 434, 465, 490, 588, 620, 651, 735, 857, 868, 930, 980, 1085, 1302, 1470, 1519, 1714, 1860, 2170, 2571, 2604, 2940, 3038, 3255, 3428, 4285, 4340, 4557, 5142, 5999, 6076, 6510, 7595, 8570, 9114, 10284, 11998, 12855, 13020, 15190, 17140, 17997, 18228, 22785, 23996, 25710, 26567, 29995, 30380, 35994, 41993, 45570, 51420, 53134, 59990, 71988, 79701, 83986, 89985, 91140, 106268, 119980, 125979, 132835, 159402, 167972, 179970, 185969, 209965, 251958, 265670, 318804, 359940, 371938, 398505, 419930, 503916, 531340, 557907, 629895, 743876, 797010, 839860, 929845, 1115814, 1259790, 1301783, 1594020, 1859690, 2231628, 2519580, 2603566, 2789535, 3719380, 3905349, 5207132, 5579070, 6508915, 7810698, 11158140, 13017830, 15621396, 19526745, 26035660, 39053490, 78106980]

約数ペア:

[(1, 78106980), (2, 39053490), (3, 26035660), (4, 19526745), (5, 15621396), (6, 13017830), (7, 11158140), (10, 7810698), (12, 6508915), (14, 5579070), (15, 5207132), (20, 3905349), (21, 3719380), (28, 2789535), (30, 2603566), (31, 2519580), (35, 2231628), (42, 1859690), (49, 1594020), (60, 1301783), (62, 1259790), (70, 1115814), (84, 929845), (93, 839860), (98, 797010), (105, 743876), (124, 629895), (140, 557907), (147, 531340), (155, 503916), (186, 419930), (196, 398505), (210, 371938), (217, 359940), (245, 318804), (294, 265670), (310, 251958), (372, 209965), (420, 185969), (434, 179970), (465, 167972), (490, 159402), (588, 132835), (620, 125979), (651, 119980), (735, 106268), (857, 91140), (868, 89985), (930, 83986), (980, 79701), (1085, 71988), (1302, 59990), (1470, 53134), (1519, 51420), (1714, 45570), (1860, 41993), (2170, 35994), (2571, 30380), (2604, 29995), (2940, 26567), (3038, 25710), (3255, 23996), (3428, 22785), (4285, 18228), (4340, 17997), (4557, 17140), (5142, 15190), (5999, 13020), (6076, 12855), (6510, 11998), (7595, 10284), (8570, 9114)]