131478516

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{563}}^1$

素因数の和:1085

約数の個数: 72

約数和(自身を含む): 359268000

約数和(自身を除く): 227789484

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 499, 563, 998, 1126, 1497, 1689, 1996, 2252, 2994, 3378, 4491, 5067, 5988, 6487, 6756, 7319, 8982, 10134, 12974, 14638, 17964, 19461, 20268, 21957, 25948, 29276, 38922, 43914, 58383, 65871, 77844, 87828, 116766, 131742, 233532, 263484, 280937, 561874, 842811, 1123748, 1685622, 2528433, 3371244, 3652181, 5056866, 7304362, 10113732, 10956543, 14608724, 21913086, 32869629, 43826172, 65739258, 131478516]

約数ペア:

[(1, 131478516), (2, 65739258), (3, 43826172), (4, 32869629), (6, 21913086), (9, 14608724), (12, 10956543), (13, 10113732), (18, 7304362), (26, 5056866), (36, 3652181), (39, 3371244), (52, 2528433), (78, 1685622), (117, 1123748), (156, 842811), (234, 561874), (468, 280937), (499, 263484), (563, 233532), (998, 131742), (1126, 116766), (1497, 87828), (1689, 77844), (1996, 65871), (2252, 58383), (2994, 43914), (3378, 38922), (4491, 29276), (5067, 25948), (5988, 21957), (6487, 20268), (6756, 19461), (7319, 17964), (8982, 14638), (10134, 12974)]