77801840

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:330

約数の個数: 80

約数和(自身を含む): 186818400

約数和(自身を除く): 109016560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 107, 122, 149, 214, 244, 298, 305, 428, 488, 535, 596, 610, 745, 856, 976, 1070, 1192, 1220, 1490, 1712, 2140, 2384, 2440, 2980, 4280, 4880, 5960, 6527, 8560, 9089, 11920, 13054, 15943, 18178, 26108, 31886, 32635, 36356, 45445, 52216, 63772, 65270, 72712, 79715, 90890, 104432, 127544, 130540, 145424, 159430, 181780, 255088, 261080, 318860, 363560, 522160, 637720, 727120, 972523, 1275440, 1945046, 3890092, 4862615, 7780184, 9725230, 15560368, 19450460, 38900920, 77801840]

約数ペア:

[(1, 77801840), (2, 38900920), (4, 19450460), (5, 15560368), (8, 9725230), (10, 7780184), (16, 4862615), (20, 3890092), (40, 1945046), (61, 1275440), (80, 972523), (107, 727120), (122, 637720), (149, 522160), (214, 363560), (244, 318860), (298, 261080), (305, 255088), (428, 181780), (488, 159430), (535, 145424), (596, 130540), (610, 127544), (745, 104432), (856, 90890), (976, 79715), (1070, 72712), (1192, 65270), (1220, 63772), (1490, 52216), (1712, 45445), (2140, 36356), (2384, 32635), (2440, 31886), (2980, 26108), (4280, 18178), (4880, 15943), (5960, 13054), (6527, 11920), (8560, 9089)]