988391355

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{673}}^1$

素因数の和:956

約数の個数: 64

約数和(自身を含む): 1844840448

約数和(自身を除く): 856449093

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 197, 213, 355, 497, 591, 673, 985, 1065, 1379, 1491, 2019, 2485, 2955, 3365, 4137, 4711, 6895, 7455, 10095, 13987, 14133, 20685, 23555, 41961, 47783, 69935, 70665, 97909, 132581, 143349, 209805, 238915, 293727, 334481, 397743, 489545, 662905, 716745, 928067, 1003443, 1468635, 1672405, 1988715, 2784201, 4640335, 5017215, 9413251, 13921005, 28239753, 47066255, 65892757, 141198765, 197678271, 329463785, 988391355]

約数ペア:

[(1, 988391355), (3, 329463785), (5, 197678271), (7, 141198765), (15, 65892757), (21, 47066255), (35, 28239753), (71, 13921005), (105, 9413251), (197, 5017215), (213, 4640335), (355, 2784201), (497, 1988715), (591, 1672405), (673, 1468635), (985, 1003443), (1065, 928067), (1379, 716745), (1491, 662905), (2019, 489545), (2485, 397743), (2955, 334481), (3365, 293727), (4137, 238915), (4711, 209805), (6895, 143349), (7455, 132581), (10095, 97909), (13987, 70665), (14133, 69935), (20685, 47783), (23555, 41961)]