20451348

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:277

約数の個数: 72

約数和(自身を含む): 53711840

約数和(自身を除く): 33260492

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 67, 122, 134, 139, 183, 201, 244, 268, 278, 366, 402, 417, 549, 556, 603, 732, 804, 834, 1098, 1206, 1251, 1668, 2196, 2412, 2502, 4087, 5004, 8174, 8479, 9313, 12261, 16348, 16958, 18626, 24522, 25437, 27939, 33916, 36783, 37252, 49044, 50874, 55878, 73566, 76311, 83817, 101748, 111756, 147132, 152622, 167634, 305244, 335268, 568093, 1136186, 1704279, 2272372, 3408558, 5112837, 6817116, 10225674, 20451348]

約数ペア:

[(1, 20451348), (2, 10225674), (3, 6817116), (4, 5112837), (6, 3408558), (9, 2272372), (12, 1704279), (18, 1136186), (36, 568093), (61, 335268), (67, 305244), (122, 167634), (134, 152622), (139, 147132), (183, 111756), (201, 101748), (244, 83817), (268, 76311), (278, 73566), (366, 55878), (402, 50874), (417, 49044), (549, 37252), (556, 36783), (603, 33916), (732, 27939), (804, 25437), (834, 24522), (1098, 18626), (1206, 16958), (1251, 16348), (1668, 12261), (2196, 9313), (2412, 8479), (2502, 8174), (4087, 5004)]