81404388

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{181}}^1$

素因数の和:266

約数の個数: 108

約数和(自身を含む): 230244924

約数和(自身を除く): 148840536

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 181, 186, 234, 279, 362, 372, 403, 468, 543, 558, 724, 806, 961, 1086, 1116, 1209, 1612, 1629, 1922, 2172, 2353, 2418, 2883, 3258, 3627, 3844, 4706, 4836, 5611, 5766, 6516, 7059, 7254, 8649, 9412, 11222, 11532, 12493, 14118, 14508, 16833, 17298, 21177, 22444, 24986, 28236, 33666, 34596, 37479, 42354, 49972, 50499, 67332, 72943, 74958, 84708, 100998, 112437, 145886, 149916, 173941, 201996, 218829, 224874, 291772, 347882, 437658, 449748, 521823, 656487, 695764, 875316, 1043646, 1312974, 1565469, 2087292, 2261233, 2625948, 3130938, 4522466, 6261876, 6783699, 9044932, 13567398, 20351097, 27134796, 40702194, 81404388]

約数ペア:

[(1, 81404388), (2, 40702194), (3, 27134796), (4, 20351097), (6, 13567398), (9, 9044932), (12, 6783699), (13, 6261876), (18, 4522466), (26, 3130938), (31, 2625948), (36, 2261233), (39, 2087292), (52, 1565469), (62, 1312974), (78, 1043646), (93, 875316), (117, 695764), (124, 656487), (156, 521823), (181, 449748), (186, 437658), (234, 347882), (279, 291772), (362, 224874), (372, 218829), (403, 201996), (468, 173941), (543, 149916), (558, 145886), (724, 112437), (806, 100998), (961, 84708), (1086, 74958), (1116, 72943), (1209, 67332), (1612, 50499), (1629, 49972), (1922, 42354), (2172, 37479), (2353, 34596), (2418, 33666), (2883, 28236), (3258, 24986), (3627, 22444), (3844, 21177), (4706, 17298), (4836, 16833), (5611, 14508), (5766, 14118), (6516, 12493), (7059, 11532), (7254, 11222), (8649, 9412)]