81278316

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{35837}}^1$

素因数の和:35860

約数の個数: 60

約数和(自身を含む): 242838288

約数和(自身を除く): 161559972

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 252, 324, 378, 567, 756, 1134, 2268, 35837, 71674, 107511, 143348, 215022, 250859, 322533, 430044, 501718, 645066, 752577, 967599, 1003436, 1290132, 1505154, 1935198, 2257731, 2902797, 3010308, 3870396, 4515462, 5805594, 6773193, 9030924, 11611188, 13546386, 20319579, 27092772, 40639158, 81278316]

約数ペア:

[(1, 81278316), (2, 40639158), (3, 27092772), (4, 20319579), (6, 13546386), (7, 11611188), (9, 9030924), (12, 6773193), (14, 5805594), (18, 4515462), (21, 3870396), (27, 3010308), (28, 2902797), (36, 2257731), (42, 1935198), (54, 1505154), (63, 1290132), (81, 1003436), (84, 967599), (108, 752577), (126, 645066), (162, 501718), (189, 430044), (252, 322533), (324, 250859), (378, 215022), (567, 143348), (756, 107511), (1134, 71674), (2268, 35837)]