18667980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2803}}^1$

素因数の和:2855

約数の個数: 72

約数和(自身を含む): 58177392

約数和(自身を除く): 39509412

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 222, 333, 370, 444, 555, 666, 740, 1110, 1332, 1665, 2220, 2803, 3330, 5606, 6660, 8409, 11212, 14015, 16818, 25227, 28030, 33636, 42045, 50454, 56060, 84090, 100908, 103711, 126135, 168180, 207422, 252270, 311133, 414844, 504540, 518555, 622266, 933399, 1037110, 1244532, 1555665, 1866798, 2074220, 3111330, 3733596, 4666995, 6222660, 9333990, 18667980]

約数ペア:

[(1, 18667980), (2, 9333990), (3, 6222660), (4, 4666995), (5, 3733596), (6, 3111330), (9, 2074220), (10, 1866798), (12, 1555665), (15, 1244532), (18, 1037110), (20, 933399), (30, 622266), (36, 518555), (37, 504540), (45, 414844), (60, 311133), (74, 252270), (90, 207422), (111, 168180), (148, 126135), (180, 103711), (185, 100908), (222, 84090), (333, 56060), (370, 50454), (444, 42045), (555, 33636), (666, 28030), (740, 25227), (1110, 16818), (1332, 14015), (1665, 11212), (2220, 8409), (2803, 6660), (3330, 5606)]