20528033355

素因数分解:

$3^2\times 5^1\times {\mathrm{101}}^2\times {\mathrm{197}}^1\times {\mathrm{227}}^1$

素因数の和:637

約数の個数: 72

約数和(自身を含む): 36279253296

約数和(自身を除く): 15751219941

約数列:

[1, 3, 5, 9, 15, 45, 101, 197, 227, 303, 505, 591, 681, 909, 985, 1135, 1515, 1773, 2043, 2955, 3405, 4545, 8865, 10201, 10215, 19897, 22927, 30603, 44719, 51005, 59691, 68781, 91809, 99485, 114635, 134157, 153015, 179073, 206343, 223595, 298455, 343905, 402471, 459045, 670785, 895365, 1031715, 2009597, 2012355, 2315627, 4516619, 6028791, 6946881, 10047985, 11578135, 13549857, 18086373, 20840643, 22583095, 30143955, 34734405, 40649571, 67749285, 90431865, 104203215, 203247855, 456178519, 1368535557, 2280892595, 4105606671, 6842677785, 20528033355]

約数ペア:

[(1, 20528033355), (3, 6842677785), (5, 4105606671), (9, 2280892595), (15, 1368535557), (45, 456178519), (101, 203247855), (197, 104203215), (227, 90431865), (303, 67749285), (505, 40649571), (591, 34734405), (681, 30143955), (909, 22583095), (985, 20840643), (1135, 18086373), (1515, 13549857), (1773, 11578135), (2043, 10047985), (2955, 6946881), (3405, 6028791), (4545, 4516619), (8865, 2315627), (10201, 2012355), (10215, 2009597), (19897, 1031715), (22927, 895365), (30603, 670785), (44719, 459045), (51005, 402471), (59691, 343905), (68781, 298455), (91809, 223595), (99485, 206343), (114635, 179073), (134157, 153015)]