19549280

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2003}}^1$

素因数の和:2079

約数の個数: 48

約数和(自身を含む): 46965744

約数和(自身を除く): 27416464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1952, 2003, 2440, 4006, 4880, 8012, 9760, 10015, 16024, 20030, 32048, 40060, 64096, 80120, 122183, 160240, 244366, 320480, 488732, 610915, 977464, 1221830, 1954928, 2443660, 3909856, 4887320, 9774640, 19549280]

約数ペア:

[(1, 19549280), (2, 9774640), (4, 4887320), (5, 3909856), (8, 2443660), (10, 1954928), (16, 1221830), (20, 977464), (32, 610915), (40, 488732), (61, 320480), (80, 244366), (122, 160240), (160, 122183), (244, 80120), (305, 64096), (488, 40060), (610, 32048), (976, 20030), (1220, 16024), (1952, 10015), (2003, 9760), (2440, 8012), (4006, 4880)]