20526870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:206

約数の個数: 128

約数和(自身を含む): 62060544

約数和(自身を除く): 41533674

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 73, 78, 91, 103, 105, 130, 146, 182, 195, 206, 210, 219, 273, 309, 365, 390, 438, 455, 511, 515, 546, 618, 721, 730, 910, 949, 1022, 1030, 1095, 1339, 1365, 1442, 1533, 1545, 1898, 2163, 2190, 2555, 2678, 2730, 2847, 3066, 3090, 3605, 4017, 4326, 4745, 5110, 5694, 6643, 6695, 7210, 7519, 7665, 8034, 9373, 9490, 10815, 13286, 13390, 14235, 15038, 15330, 18746, 19929, 20085, 21630, 22557, 28119, 28470, 33215, 37595, 39858, 40170, 45114, 46865, 52633, 56238, 66430, 75190, 93730, 97747, 99645, 105266, 112785, 140595, 157899, 195494, 199290, 225570, 263165, 281190, 293241, 315798, 488735, 526330, 586482, 684229, 789495, 977470, 1368458, 1466205, 1578990, 2052687, 2932410, 3421145, 4105374, 6842290, 10263435, 20526870]

約数ペア:

[(1, 20526870), (2, 10263435), (3, 6842290), (5, 4105374), (6, 3421145), (7, 2932410), (10, 2052687), (13, 1578990), (14, 1466205), (15, 1368458), (21, 977470), (26, 789495), (30, 684229), (35, 586482), (39, 526330), (42, 488735), (65, 315798), (70, 293241), (73, 281190), (78, 263165), (91, 225570), (103, 199290), (105, 195494), (130, 157899), (146, 140595), (182, 112785), (195, 105266), (206, 99645), (210, 97747), (219, 93730), (273, 75190), (309, 66430), (365, 56238), (390, 52633), (438, 46865), (455, 45114), (511, 40170), (515, 39858), (546, 37595), (618, 33215), (721, 28470), (730, 28119), (910, 22557), (949, 21630), (1022, 20085), (1030, 19929), (1095, 18746), (1339, 15330), (1365, 15038), (1442, 14235), (1533, 13390), (1545, 13286), (1898, 10815), (2163, 9490), (2190, 9373), (2555, 8034), (2678, 7665), (2730, 7519), (2847, 7210), (3066, 6695), (3090, 6643), (3605, 5694), (4017, 5110), (4326, 4745)]