81443628

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{4091}}^1$

素因数の和:4187

約数の個数: 72

約数和(自身を含む): 238318080

約数和(自身を除く): 156874452

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 79, 84, 126, 158, 237, 252, 316, 474, 553, 711, 948, 1106, 1422, 1659, 2212, 2844, 3318, 4091, 4977, 6636, 8182, 9954, 12273, 16364, 19908, 24546, 28637, 36819, 49092, 57274, 73638, 85911, 114548, 147276, 171822, 257733, 323189, 343644, 515466, 646378, 969567, 1030932, 1292756, 1939134, 2262323, 2908701, 3878268, 4524646, 5817402, 6786969, 9049292, 11634804, 13573938, 20360907, 27147876, 40721814, 81443628]

約数ペア:

[(1, 81443628), (2, 40721814), (3, 27147876), (4, 20360907), (6, 13573938), (7, 11634804), (9, 9049292), (12, 6786969), (14, 5817402), (18, 4524646), (21, 3878268), (28, 2908701), (36, 2262323), (42, 1939134), (63, 1292756), (79, 1030932), (84, 969567), (126, 646378), (158, 515466), (237, 343644), (252, 323189), (316, 257733), (474, 171822), (553, 147276), (711, 114548), (948, 85911), (1106, 73638), (1422, 57274), (1659, 49092), (2212, 36819), (2844, 28637), (3318, 24546), (4091, 19908), (4977, 16364), (6636, 12273), (8182, 9954)]