81531576

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{53923}}^1$

素因数の和:53945

約数の個数: 64

約数和(自身を含む): 258835200

約数和(自身を除く): 177303624

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 84, 108, 126, 168, 189, 216, 252, 378, 504, 756, 1512, 53923, 107846, 161769, 215692, 323538, 377461, 431384, 485307, 647076, 754922, 970614, 1132383, 1294152, 1455921, 1509844, 1941228, 2264766, 2911842, 3019688, 3397149, 3882456, 4529532, 5823684, 6794298, 9059064, 10191447, 11647368, 13588596, 20382894, 27177192, 40765788, 81531576]

約数ペア:

[(1, 81531576), (2, 40765788), (3, 27177192), (4, 20382894), (6, 13588596), (7, 11647368), (8, 10191447), (9, 9059064), (12, 6794298), (14, 5823684), (18, 4529532), (21, 3882456), (24, 3397149), (27, 3019688), (28, 2911842), (36, 2264766), (42, 1941228), (54, 1509844), (56, 1455921), (63, 1294152), (72, 1132383), (84, 970614), (108, 754922), (126, 647076), (168, 485307), (189, 431384), (216, 377461), (252, 323538), (378, 215692), (504, 161769), (756, 107846), (1512, 53923)]