81678132

素因数分解:

$2^2\times 3^5\times {\mathrm{17}}^1\times {\mathrm{4943}}^1$

素因数の和:4979

約数の個数: 72

約数和(自身を含む): 226751616

約数和(自身を除く): 145073484

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 68, 81, 102, 108, 153, 162, 204, 243, 306, 324, 459, 486, 612, 918, 972, 1377, 1836, 2754, 4131, 4943, 5508, 8262, 9886, 14829, 16524, 19772, 29658, 44487, 59316, 84031, 88974, 133461, 168062, 177948, 252093, 266922, 336124, 400383, 504186, 533844, 756279, 800766, 1008372, 1201149, 1512558, 1601532, 2268837, 2402298, 3025116, 4537674, 4804596, 6806511, 9075348, 13613022, 20419533, 27226044, 40839066, 81678132]

約数ペア:

[(1, 81678132), (2, 40839066), (3, 27226044), (4, 20419533), (6, 13613022), (9, 9075348), (12, 6806511), (17, 4804596), (18, 4537674), (27, 3025116), (34, 2402298), (36, 2268837), (51, 1601532), (54, 1512558), (68, 1201149), (81, 1008372), (102, 800766), (108, 756279), (153, 533844), (162, 504186), (204, 400383), (243, 336124), (306, 266922), (324, 252093), (459, 177948), (486, 168062), (612, 133461), (918, 88974), (972, 84031), (1377, 59316), (1836, 44487), (2754, 29658), (4131, 19772), (4943, 16524), (5508, 14829), (8262, 9886)]