2018941805

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 2737152000

約数和(自身を除く): 718210195

約数列:

[1, 5, 19, 31, 43, 95, 107, 149, 155, 215, 535, 589, 745, 817, 1333, 2033, 2831, 2945, 3317, 4085, 4601, 4619, 6407, 6665, 10165, 14155, 15943, 16585, 23005, 23095, 25327, 32035, 63023, 79715, 87419, 87761, 121733, 126635, 142631, 198617, 302917, 315115, 437095, 438805, 494233, 608665, 685549, 713155, 993085, 1514585, 2471165, 2709989, 3427745, 3773723, 9390427, 13025431, 13549945, 18868615, 21252019, 46952135, 65127155, 106260095, 403788361, 2018941805]

約数ペア:

[(1, 2018941805), (5, 403788361), (19, 106260095), (31, 65127155), (43, 46952135), (95, 21252019), (107, 18868615), (149, 13549945), (155, 13025431), (215, 9390427), (535, 3773723), (589, 3427745), (745, 2709989), (817, 2471165), (1333, 1514585), (2033, 993085), (2831, 713155), (2945, 685549), (3317, 608665), (4085, 494233), (4601, 438805), (4619, 437095), (6407, 315115), (6665, 302917), (10165, 198617), (14155, 142631), (15943, 126635), (16585, 121733), (23005, 87761), (23095, 87419), (25327, 79715), (32035, 63023)]