80645940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12109}}^1$

素因数の和:12161

約数の個数: 72

約数和(自身を含む): 251258280

約数和(自身を除く): 170612340

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, 3330, 6660, 12109, 24218, 36327, 48436, 60545, 72654, 108981, 121090, 145308, 181635, 217962, 242180, 363270, 435924, 448033, 544905, 726540, 896066, 1089810, 1344099, 1792132, 2179620, 2240165, 2688198, 4032297, 4480330, 5376396, 6720495, 8064594, 8960660, 13440990, 16129188, 20161485, 26881980, 40322970, 80645940]

約数ペア:

[(1, 80645940), (2, 40322970), (3, 26881980), (4, 20161485), (5, 16129188), (6, 13440990), (9, 8960660), (10, 8064594), (12, 6720495), (15, 5376396), (18, 4480330), (20, 4032297), (30, 2688198), (36, 2240165), (37, 2179620), (45, 1792132), (60, 1344099), (74, 1089810), (90, 896066), (111, 726540), (148, 544905), (180, 448033), (185, 435924), (222, 363270), (333, 242180), (370, 217962), (444, 181635), (555, 145308), (666, 121090), (740, 108981), (1110, 72654), (1332, 60545), (1665, 48436), (2220, 36327), (3330, 24218), (6660, 12109)]