81657345

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^2$

素因数の和:167

約数の個数: 96

約数和(自身を含む): 174320640

約数和(自身を除く): 92663295

約数列:

[1, 3, 5, 7, 11, 15, 19, 21, 33, 35, 55, 57, 61, 77, 95, 105, 133, 165, 183, 209, 231, 285, 305, 385, 399, 427, 627, 665, 671, 915, 1045, 1155, 1159, 1281, 1463, 1995, 2013, 2135, 3135, 3355, 3477, 3721, 4389, 4697, 5795, 6405, 7315, 8113, 10065, 11163, 12749, 14091, 17385, 18605, 21945, 23485, 24339, 26047, 38247, 40565, 40931, 55815, 63745, 70455, 70699, 78141, 89243, 121695, 122793, 130235, 191235, 204655, 212097, 267729, 286517, 353495, 390705, 446215, 494893, 613965, 777689, 859551, 1060485, 1338645, 1432585, 1484679, 2333067, 2474465, 3888445, 4297755, 5443823, 7423395, 11665335, 16331469, 27219115, 81657345]

約数ペア:

[(1, 81657345), (3, 27219115), (5, 16331469), (7, 11665335), (11, 7423395), (15, 5443823), (19, 4297755), (21, 3888445), (33, 2474465), (35, 2333067), (55, 1484679), (57, 1432585), (61, 1338645), (77, 1060485), (95, 859551), (105, 777689), (133, 613965), (165, 494893), (183, 446215), (209, 390705), (231, 353495), (285, 286517), (305, 267729), (385, 212097), (399, 204655), (427, 191235), (627, 130235), (665, 122793), (671, 121695), (915, 89243), (1045, 78141), (1155, 70699), (1159, 70455), (1281, 63745), (1463, 55815), (1995, 40931), (2013, 40565), (2135, 38247), (3135, 26047), (3355, 24339), (3477, 23485), (3721, 21945), (4389, 18605), (4697, 17385), (5795, 14091), (6405, 12749), (7315, 11163), (8113, 10065)]