19852080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{457}}^1$

素因数の和:654

約数の個数: 80

約数和(自身を含む): 62016864

約数和(自身を除く): 42164784

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 181, 240, 362, 457, 543, 724, 905, 914, 1086, 1371, 1448, 1810, 1828, 2172, 2285, 2715, 2742, 2896, 3620, 3656, 4344, 4570, 5430, 5484, 6855, 7240, 7312, 8688, 9140, 10860, 10968, 13710, 14480, 18280, 21720, 21936, 27420, 36560, 43440, 54840, 82717, 109680, 165434, 248151, 330868, 413585, 496302, 661736, 827170, 992604, 1240755, 1323472, 1654340, 1985208, 2481510, 3308680, 3970416, 4963020, 6617360, 9926040, 19852080]

約数ペア:

[(1, 19852080), (2, 9926040), (3, 6617360), (4, 4963020), (5, 3970416), (6, 3308680), (8, 2481510), (10, 1985208), (12, 1654340), (15, 1323472), (16, 1240755), (20, 992604), (24, 827170), (30, 661736), (40, 496302), (48, 413585), (60, 330868), (80, 248151), (120, 165434), (181, 109680), (240, 82717), (362, 54840), (457, 43440), (543, 36560), (724, 27420), (905, 21936), (914, 21720), (1086, 18280), (1371, 14480), (1448, 13710), (1810, 10968), (1828, 10860), (2172, 9140), (2285, 8688), (2715, 7312), (2742, 7240), (2896, 6855), (3620, 5484), (3656, 5430), (4344, 4570)]