81894876

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:184

約数の個数: 144

約数和(自身を含む): 235952640

約数和(自身を除く): 154057764

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 41, 42, 43, 49, 79, 82, 84, 86, 98, 123, 129, 147, 158, 164, 172, 196, 237, 246, 258, 287, 294, 301, 316, 474, 492, 516, 553, 574, 588, 602, 861, 903, 948, 1106, 1148, 1204, 1659, 1722, 1763, 1806, 2009, 2107, 2212, 3239, 3318, 3397, 3444, 3526, 3612, 3871, 4018, 4214, 5289, 6027, 6321, 6478, 6636, 6794, 7052, 7742, 8036, 8428, 9717, 10191, 10578, 11613, 12054, 12341, 12642, 12956, 13588, 15484, 19434, 20382, 21156, 22673, 23226, 23779, 24108, 24682, 25284, 37023, 38868, 40764, 45346, 46452, 47558, 49364, 68019, 71337, 74046, 86387, 90692, 95116, 136038, 139277, 142674, 148092, 158711, 166453, 172774, 259161, 272076, 278554, 285348, 317422, 332906, 345548, 417831, 476133, 499359, 518322, 557108, 634844, 665812, 835662, 952266, 974939, 998718, 1036644, 1671324, 1904532, 1949878, 1997436, 2924817, 3899756, 5849634, 6824573, 11699268, 13649146, 20473719, 27298292, 40947438, 81894876]

約数ペア:

[(1, 81894876), (2, 40947438), (3, 27298292), (4, 20473719), (6, 13649146), (7, 11699268), (12, 6824573), (14, 5849634), (21, 3899756), (28, 2924817), (41, 1997436), (42, 1949878), (43, 1904532), (49, 1671324), (79, 1036644), (82, 998718), (84, 974939), (86, 952266), (98, 835662), (123, 665812), (129, 634844), (147, 557108), (158, 518322), (164, 499359), (172, 476133), (196, 417831), (237, 345548), (246, 332906), (258, 317422), (287, 285348), (294, 278554), (301, 272076), (316, 259161), (474, 172774), (492, 166453), (516, 158711), (553, 148092), (574, 142674), (588, 139277), (602, 136038), (861, 95116), (903, 90692), (948, 86387), (1106, 74046), (1148, 71337), (1204, 68019), (1659, 49364), (1722, 47558), (1763, 46452), (1806, 45346), (2009, 40764), (2107, 38868), (2212, 37023), (3239, 25284), (3318, 24682), (3397, 24108), (3444, 23779), (3526, 23226), (3612, 22673), (3871, 21156), (4018, 20382), (4214, 19434), (5289, 15484), (6027, 13588), (6321, 12956), (6478, 12642), (6636, 12341), (6794, 12054), (7052, 11613), (7742, 10578), (8036, 10191), (8428, 9717)]