19263280

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{619}}^1$

素因数の和:1021

約数の個数: 40

約数和(自身を含む): 44974800

約数和(自身を除く): 25711520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 619, 778, 1238, 1556, 1945, 2476, 3095, 3112, 3890, 4952, 6190, 6224, 7780, 9904, 12380, 15560, 24760, 31120, 49520, 240791, 481582, 963164, 1203955, 1926328, 2407910, 3852656, 4815820, 9631640, 19263280]

約数ペア:

[(1, 19263280), (2, 9631640), (4, 4815820), (5, 3852656), (8, 2407910), (10, 1926328), (16, 1203955), (20, 963164), (40, 481582), (80, 240791), (389, 49520), (619, 31120), (778, 24760), (1238, 15560), (1556, 12380), (1945, 9904), (2476, 7780), (3095, 6224), (3112, 6190), (3890, 4952)]