12720456

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1$

素因数の和:248

約数の個数: 128

約数和(自身を含む): 41472000

約数和(自身を除く): 28751544

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 47, 54, 56, 63, 72, 84, 94, 108, 126, 141, 168, 179, 188, 189, 216, 252, 282, 329, 358, 376, 378, 423, 504, 537, 564, 658, 716, 756, 846, 987, 1074, 1128, 1253, 1269, 1316, 1432, 1512, 1611, 1692, 1974, 2148, 2506, 2538, 2632, 2961, 3222, 3384, 3759, 3948, 4296, 4833, 5012, 5076, 5922, 6444, 7518, 7896, 8413, 8883, 9666, 10024, 10152, 11277, 11844, 12888, 15036, 16826, 17766, 19332, 22554, 23688, 25239, 30072, 33652, 33831, 35532, 38664, 45108, 50478, 58891, 67304, 67662, 71064, 75717, 90216, 100956, 117782, 135324, 151434, 176673, 201912, 227151, 235564, 270648, 302868, 353346, 454302, 471128, 530019, 605736, 706692, 908604, 1060038, 1413384, 1590057, 1817208, 2120076, 3180114, 4240152, 6360228, 12720456]

約数ペア:

[(1, 12720456), (2, 6360228), (3, 4240152), (4, 3180114), (6, 2120076), (7, 1817208), (8, 1590057), (9, 1413384), (12, 1060038), (14, 908604), (18, 706692), (21, 605736), (24, 530019), (27, 471128), (28, 454302), (36, 353346), (42, 302868), (47, 270648), (54, 235564), (56, 227151), (63, 201912), (72, 176673), (84, 151434), (94, 135324), (108, 117782), (126, 100956), (141, 90216), (168, 75717), (179, 71064), (188, 67662), (189, 67304), (216, 58891), (252, 50478), (282, 45108), (329, 38664), (358, 35532), (376, 33831), (378, 33652), (423, 30072), (504, 25239), (537, 23688), (564, 22554), (658, 19332), (716, 17766), (756, 16826), (846, 15036), (987, 12888), (1074, 11844), (1128, 11277), (1253, 10152), (1269, 10024), (1316, 9666), (1432, 8883), (1512, 8413), (1611, 7896), (1692, 7518), (1974, 6444), (2148, 5922), (2506, 5076), (2538, 5012), (2632, 4833), (2961, 4296), (3222, 3948), (3384, 3759)]