21750840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1949}}^1$

素因数の和:1997

約数の個数: 96

約数和(自身を含む): 73008000

約数和(自身を除く): 51257160

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, 1949, 2232, 2790, 3720, 3898, 5580, 5847, 7796, 9745, 11160, 11694, 15592, 17541, 19490, 23388, 29235, 35082, 38980, 46776, 58470, 60419, 70164, 77960, 87705, 116940, 120838, 140328, 175410, 181257, 233880, 241676, 302095, 350820, 362514, 483352, 543771, 604190, 701640, 725028, 906285, 1087542, 1208380, 1450056, 1812570, 2175084, 2416760, 2718855, 3625140, 4350168, 5437710, 7250280, 10875420, 21750840]

約数ペア:

[(1, 21750840), (2, 10875420), (3, 7250280), (4, 5437710), (5, 4350168), (6, 3625140), (8, 2718855), (9, 2416760), (10, 2175084), (12, 1812570), (15, 1450056), (18, 1208380), (20, 1087542), (24, 906285), (30, 725028), (31, 701640), (36, 604190), (40, 543771), (45, 483352), (60, 362514), (62, 350820), (72, 302095), (90, 241676), (93, 233880), (120, 181257), (124, 175410), (155, 140328), (180, 120838), (186, 116940), (248, 87705), (279, 77960), (310, 70164), (360, 60419), (372, 58470), (465, 46776), (558, 38980), (620, 35082), (744, 29235), (930, 23388), (1116, 19490), (1240, 17541), (1395, 15592), (1860, 11694), (1949, 11160), (2232, 9745), (2790, 7796), (3720, 5847), (3898, 5580)]