171181980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{25703}}^1$

素因数の和:25755

約数の個数: 72

約数和(自身を含む): 533306592

約数和(自身を除く): 362124612

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, 25703, 51406, 77109, 102812, 128515, 154218, 231327, 257030, 308436, 385545, 462654, 514060, 771090, 925308, 951011, 1156635, 1542180, 1902022, 2313270, 2853033, 3804044, 4626540, 4755055, 5706066, 8559099, 9510110, 11412132, 14265165, 17118198, 19020220, 28530330, 34236396, 42795495, 57060660, 85590990, 171181980]

約数ペア:

[(1, 171181980), (2, 85590990), (3, 57060660), (4, 42795495), (5, 34236396), (6, 28530330), (9, 19020220), (10, 17118198), (12, 14265165), (15, 11412132), (18, 9510110), (20, 8559099), (30, 5706066), (36, 4755055), (37, 4626540), (45, 3804044), (60, 2853033), (74, 2313270), (90, 1902022), (111, 1542180), (148, 1156635), (180, 951011), (185, 925308), (222, 771090), (333, 514060), (370, 462654), (444, 385545), (555, 308436), (666, 257030), (740, 231327), (1110, 154218), (1332, 128515), (1665, 102812), (2220, 77109), (3330, 51406), (6660, 25703)]