19751440

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1657}}^1$

素因数の和:1819

約数の個数: 40

約数和(自身を含む): 46258200

約数和(自身を除く): 26506760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 1657, 2384, 2980, 3314, 5960, 6628, 8285, 11920, 13256, 16570, 26512, 33140, 66280, 132560, 246893, 493786, 987572, 1234465, 1975144, 2468930, 3950288, 4937860, 9875720, 19751440]

約数ペア:

[(1, 19751440), (2, 9875720), (4, 4937860), (5, 3950288), (8, 2468930), (10, 1975144), (16, 1234465), (20, 987572), (40, 493786), (80, 246893), (149, 132560), (298, 66280), (596, 33140), (745, 26512), (1192, 16570), (1490, 13256), (1657, 11920), (2384, 8285), (2980, 6628), (3314, 5960)]