71885300

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:341

約数の個数: 72

約数和(自身を含む): 162411480

約数和(自身を除く): 90526180

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 89, 100, 164, 178, 197, 205, 356, 394, 410, 445, 788, 820, 890, 985, 1025, 1780, 1970, 2050, 2225, 3649, 3940, 4100, 4450, 4925, 7298, 8077, 8900, 9850, 14596, 16154, 17533, 18245, 19700, 32308, 35066, 36490, 40385, 70132, 72980, 80770, 87665, 91225, 161540, 175330, 182450, 201925, 350660, 364900, 403850, 438325, 718853, 807700, 876650, 1437706, 1753300, 2875412, 3594265, 7188530, 14377060, 17971325, 35942650, 71885300]

約数ペア:

[(1, 71885300), (2, 35942650), (4, 17971325), (5, 14377060), (10, 7188530), (20, 3594265), (25, 2875412), (41, 1753300), (50, 1437706), (82, 876650), (89, 807700), (100, 718853), (164, 438325), (178, 403850), (197, 364900), (205, 350660), (356, 201925), (394, 182450), (410, 175330), (445, 161540), (788, 91225), (820, 87665), (890, 80770), (985, 72980), (1025, 70132), (1780, 40385), (1970, 36490), (2050, 35066), (2225, 32308), (3649, 19700), (3940, 18245), (4100, 17533), (4450, 16154), (4925, 14596), (7298, 9850), (8077, 8900)]