8720145

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:115

約数の個数: 96

約数和(自身を含む): 19169280

約数和(自身を除く): 10449135

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 31, 35, 45, 47, 57, 63, 93, 95, 105, 133, 141, 155, 171, 217, 235, 279, 285, 315, 329, 399, 423, 465, 589, 651, 665, 705, 855, 893, 987, 1085, 1197, 1395, 1457, 1645, 1767, 1953, 1995, 2115, 2679, 2945, 2961, 3255, 4123, 4371, 4465, 4935, 5301, 5985, 6251, 7285, 8037, 8835, 9765, 10199, 12369, 13113, 13395, 14805, 18753, 20615, 21855, 26505, 27683, 30597, 31255, 37107, 40185, 50995, 56259, 61845, 65565, 83049, 91791, 93765, 138415, 152985, 185535, 193781, 249147, 281295, 415245, 458955, 581343, 968905, 1245735, 1744029, 2906715, 8720145]

約数ペア:

[(1, 8720145), (3, 2906715), (5, 1744029), (7, 1245735), (9, 968905), (15, 581343), (19, 458955), (21, 415245), (31, 281295), (35, 249147), (45, 193781), (47, 185535), (57, 152985), (63, 138415), (93, 93765), (95, 91791), (105, 83049), (133, 65565), (141, 61845), (155, 56259), (171, 50995), (217, 40185), (235, 37107), (279, 31255), (285, 30597), (315, 27683), (329, 26505), (399, 21855), (423, 20615), (465, 18753), (589, 14805), (651, 13395), (665, 13113), (705, 12369), (855, 10199), (893, 9765), (987, 8835), (1085, 8037), (1197, 7285), (1395, 6251), (1457, 5985), (1645, 5301), (1767, 4935), (1953, 4465), (1995, 4371), (2115, 4123), (2679, 3255), (2945, 2961)]