205657900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^2$

素因数の和:141

約数の個数: 162

約数和(自身を含む): 558336660

約数和(自身を除く): 352678760

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 35, 38, 47, 49, 50, 70, 76, 94, 95, 98, 100, 133, 140, 175, 188, 190, 196, 235, 245, 266, 329, 350, 380, 470, 475, 490, 532, 658, 665, 700, 893, 931, 940, 950, 980, 1175, 1225, 1316, 1330, 1645, 1786, 1862, 1900, 2209, 2303, 2350, 2450, 2660, 3290, 3325, 3572, 3724, 4418, 4465, 4606, 4655, 4700, 4900, 6251, 6580, 6650, 8225, 8836, 8930, 9212, 9310, 11045, 11515, 12502, 13300, 15463, 16450, 17860, 18620, 22090, 22325, 23030, 23275, 25004, 30926, 31255, 32900, 41971, 43757, 44180, 44650, 46060, 46550, 55225, 57575, 61852, 62510, 77315, 83942, 87514, 89300, 93100, 108241, 110450, 115150, 125020, 154630, 156275, 167884, 175028, 209855, 216482, 218785, 220900, 230300, 293797, 309260, 312550, 386575, 419710, 432964, 437570, 541205, 587594, 625100, 773150, 839420, 875140, 1049275, 1082410, 1093925, 1175188, 1468985, 1546300, 2056579, 2098550, 2164820, 2187850, 2706025, 2937970, 4113158, 4197100, 4375700, 5412050, 5875940, 7344925, 8226316, 10282895, 10824100, 14689850, 20565790, 29379700, 41131580, 51414475, 102828950, 205657900]

約数ペア:

[(1, 205657900), (2, 102828950), (4, 51414475), (5, 41131580), (7, 29379700), (10, 20565790), (14, 14689850), (19, 10824100), (20, 10282895), (25, 8226316), (28, 7344925), (35, 5875940), (38, 5412050), (47, 4375700), (49, 4197100), (50, 4113158), (70, 2937970), (76, 2706025), (94, 2187850), (95, 2164820), (98, 2098550), (100, 2056579), (133, 1546300), (140, 1468985), (175, 1175188), (188, 1093925), (190, 1082410), (196, 1049275), (235, 875140), (245, 839420), (266, 773150), (329, 625100), (350, 587594), (380, 541205), (470, 437570), (475, 432964), (490, 419710), (532, 386575), (658, 312550), (665, 309260), (700, 293797), (893, 230300), (931, 220900), (940, 218785), (950, 216482), (980, 209855), (1175, 175028), (1225, 167884), (1316, 156275), (1330, 154630), (1645, 125020), (1786, 115150), (1862, 110450), (1900, 108241), (2209, 93100), (2303, 89300), (2350, 87514), (2450, 83942), (2660, 77315), (3290, 62510), (3325, 61852), (3572, 57575), (3724, 55225), (4418, 46550), (4465, 46060), (4606, 44650), (4655, 44180), (4700, 43757), (4900, 41971), (6251, 32900), (6580, 31255), (6650, 30926), (8225, 25004), (8836, 23275), (8930, 23030), (9212, 22325), (9310, 22090), (11045, 18620), (11515, 17860), (12502, 16450), (13300, 15463)]