81876690

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{43321}}^1$

素因数の和:43344

約数の個数: 64

約数和(自身を含む): 249534720

約数和(自身を除く): 167658030

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 43321, 86642, 129963, 216605, 259926, 303247, 389889, 433210, 606494, 649815, 779778, 909741, 1169667, 1299630, 1516235, 1819482, 1949445, 2339334, 2729223, 3032470, 3898890, 4548705, 5458446, 5848335, 8187669, 9097410, 11696670, 13646115, 16375338, 27292230, 40938345, 81876690]

約数ペア:

[(1, 81876690), (2, 40938345), (3, 27292230), (5, 16375338), (6, 13646115), (7, 11696670), (9, 9097410), (10, 8187669), (14, 5848335), (15, 5458446), (18, 4548705), (21, 3898890), (27, 3032470), (30, 2729223), (35, 2339334), (42, 1949445), (45, 1819482), (54, 1516235), (63, 1299630), (70, 1169667), (90, 909741), (105, 779778), (126, 649815), (135, 606494), (189, 433210), (210, 389889), (270, 303247), (315, 259926), (378, 216605), (630, 129963), (945, 86642), (1890, 43321)]