28561788

素因数分解:

$2^2\times 3^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{449}}^1$

素因数の和:512

約数の個数: 96

約数和(自身を含む): 80640000

約数和(自身を除く): 52078212

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 31, 36, 38, 54, 57, 62, 76, 93, 108, 114, 124, 171, 186, 228, 279, 342, 372, 449, 513, 558, 589, 684, 837, 898, 1026, 1116, 1178, 1347, 1674, 1767, 1796, 2052, 2356, 2694, 3348, 3534, 4041, 5301, 5388, 7068, 8082, 8531, 10602, 12123, 13919, 15903, 16164, 17062, 21204, 24246, 25593, 27838, 31806, 34124, 41757, 48492, 51186, 55676, 63612, 76779, 83514, 102372, 125271, 153558, 167028, 230337, 250542, 264461, 307116, 375813, 460674, 501084, 528922, 751626, 793383, 921348, 1057844, 1503252, 1586766, 2380149, 3173532, 4760298, 7140447, 9520596, 14280894, 28561788]

約数ペア:

[(1, 28561788), (2, 14280894), (3, 9520596), (4, 7140447), (6, 4760298), (9, 3173532), (12, 2380149), (18, 1586766), (19, 1503252), (27, 1057844), (31, 921348), (36, 793383), (38, 751626), (54, 528922), (57, 501084), (62, 460674), (76, 375813), (93, 307116), (108, 264461), (114, 250542), (124, 230337), (171, 167028), (186, 153558), (228, 125271), (279, 102372), (342, 83514), (372, 76779), (449, 63612), (513, 55676), (558, 51186), (589, 48492), (684, 41757), (837, 34124), (898, 31806), (1026, 27838), (1116, 25593), (1178, 24246), (1347, 21204), (1674, 17062), (1767, 16164), (1796, 15903), (2052, 13919), (2356, 12123), (2694, 10602), (3348, 8531), (3534, 8082), (4041, 7068), (5301, 5388)]