180400100

素因数分解:

$2^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{293}}^1$

素因数の和:485

約数の個数: 72

約数和(自身を含む): 404224128

約数和(自身を除く): 223824028

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 100, 131, 188, 235, 262, 293, 470, 524, 586, 655, 940, 1172, 1175, 1310, 1465, 2350, 2620, 2930, 3275, 4700, 5860, 6157, 6550, 7325, 12314, 13100, 13771, 14650, 24628, 27542, 29300, 30785, 38383, 55084, 61570, 68855, 76766, 123140, 137710, 153532, 153925, 191915, 275420, 307850, 344275, 383830, 615700, 688550, 767660, 959575, 1377100, 1804001, 1919150, 3608002, 3838300, 7216004, 9020005, 18040010, 36080020, 45100025, 90200050, 180400100]

約数ペア:

[(1, 180400100), (2, 90200050), (4, 45100025), (5, 36080020), (10, 18040010), (20, 9020005), (25, 7216004), (47, 3838300), (50, 3608002), (94, 1919150), (100, 1804001), (131, 1377100), (188, 959575), (235, 767660), (262, 688550), (293, 615700), (470, 383830), (524, 344275), (586, 307850), (655, 275420), (940, 191915), (1172, 153925), (1175, 153532), (1310, 137710), (1465, 123140), (2350, 76766), (2620, 68855), (2930, 61570), (3275, 55084), (4700, 38383), (5860, 30785), (6157, 29300), (6550, 27542), (7325, 24628), (12314, 14650), (13100, 13771)]