81813960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7331}}^1$

素因数の和:7379

約数の個数: 96

約数和(自身を含む): 274510080

約数和(自身を除く): 192696120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 155, 180, 186, 248, 279, 310, 360, 372, 465, 558, 620, 744, 930, 1116, 1240, 1395, 1860, 2232, 2790, 3720, 5580, 7331, 11160, 14662, 21993, 29324, 36655, 43986, 58648, 65979, 73310, 87972, 109965, 131958, 146620, 175944, 219930, 227261, 263916, 293240, 329895, 439860, 454522, 527832, 659790, 681783, 879720, 909044, 1136305, 1319580, 1363566, 1818088, 2045349, 2272610, 2639160, 2727132, 3408915, 4090698, 4545220, 5454264, 6817830, 8181396, 9090440, 10226745, 13635660, 16362792, 20453490, 27271320, 40906980, 81813960]

約数ペア:

[(1, 81813960), (2, 40906980), (3, 27271320), (4, 20453490), (5, 16362792), (6, 13635660), (8, 10226745), (9, 9090440), (10, 8181396), (12, 6817830), (15, 5454264), (18, 4545220), (20, 4090698), (24, 3408915), (30, 2727132), (31, 2639160), (36, 2272610), (40, 2045349), (45, 1818088), (60, 1363566), (62, 1319580), (72, 1136305), (90, 909044), (93, 879720), (120, 681783), (124, 659790), (155, 527832), (180, 454522), (186, 439860), (248, 329895), (279, 293240), (310, 263916), (360, 227261), (372, 219930), (465, 175944), (558, 146620), (620, 131958), (744, 109965), (930, 87972), (1116, 73310), (1240, 65979), (1395, 58648), (1860, 43986), (2232, 36655), (2790, 29324), (3720, 21993), (5580, 14662), (7331, 11160)]