19487970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{971}}^1$

素因数の和:1207

約数の個数: 48

約数和(自身を含む): 50948352

約数和(自身を除く): 31460382

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 223, 446, 669, 971, 1115, 1338, 1942, 2007, 2230, 2913, 3345, 4014, 4855, 5826, 6690, 8739, 9710, 10035, 14565, 17478, 20070, 29130, 43695, 87390, 216533, 433066, 649599, 1082665, 1299198, 1948797, 2165330, 3247995, 3897594, 6495990, 9743985, 19487970]

約数ペア:

[(1, 19487970), (2, 9743985), (3, 6495990), (5, 3897594), (6, 3247995), (9, 2165330), (10, 1948797), (15, 1299198), (18, 1082665), (30, 649599), (45, 433066), (90, 216533), (223, 87390), (446, 43695), (669, 29130), (971, 20070), (1115, 17478), (1338, 14565), (1942, 10035), (2007, 9710), (2230, 8739), (2913, 6690), (3345, 5826), (4014, 4855)]