19558920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{419}}^1$

素因数の和:822

約数の個数: 64

約数和(自身を含む): 58968000

約数和(自身を除く): 39409080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 389, 419, 778, 838, 1167, 1257, 1556, 1676, 1945, 2095, 2334, 2514, 3112, 3352, 3890, 4190, 4668, 5028, 5835, 6285, 7780, 8380, 9336, 10056, 11670, 12570, 15560, 16760, 23340, 25140, 46680, 50280, 162991, 325982, 488973, 651964, 814955, 977946, 1303928, 1629910, 1955892, 2444865, 3259820, 3911784, 4889730, 6519640, 9779460, 19558920]

約数ペア:

[(1, 19558920), (2, 9779460), (3, 6519640), (4, 4889730), (5, 3911784), (6, 3259820), (8, 2444865), (10, 1955892), (12, 1629910), (15, 1303928), (20, 977946), (24, 814955), (30, 651964), (40, 488973), (60, 325982), (120, 162991), (389, 50280), (419, 46680), (778, 25140), (838, 23340), (1167, 16760), (1257, 15560), (1556, 12570), (1676, 11670), (1945, 10056), (2095, 9336), (2334, 8380), (2514, 7780), (3112, 6285), (3352, 5835), (3890, 5028), (4190, 4668)]