19727660

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{503}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 43436736

約数和(自身を除く): 23709076

約数列:

[1, 2, 4, 5, 10, 20, 37, 53, 74, 106, 148, 185, 212, 265, 370, 503, 530, 740, 1006, 1060, 1961, 2012, 2515, 3922, 5030, 7844, 9805, 10060, 18611, 19610, 26659, 37222, 39220, 53318, 74444, 93055, 106636, 133295, 186110, 266590, 372220, 533180, 986383, 1972766, 3945532, 4931915, 9863830, 19727660]

約数ペア:

[(1, 19727660), (2, 9863830), (4, 4931915), (5, 3945532), (10, 1972766), (20, 986383), (37, 533180), (53, 372220), (74, 266590), (106, 186110), (148, 133295), (185, 106636), (212, 93055), (265, 74444), (370, 53318), (503, 39220), (530, 37222), (740, 26659), (1006, 19610), (1060, 18611), (1961, 10060), (2012, 9805), (2515, 7844), (3922, 5030)]