128612900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:214

約数の個数: 144

約数和(自身を含む): 326645760

約数和(自身を除く): 198032860

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 38, 41, 50, 52, 65, 76, 82, 95, 100, 127, 130, 164, 190, 205, 247, 254, 260, 325, 380, 410, 475, 494, 508, 533, 635, 650, 779, 820, 950, 988, 1025, 1066, 1235, 1270, 1300, 1558, 1651, 1900, 2050, 2132, 2413, 2470, 2540, 2665, 3116, 3175, 3302, 3895, 4100, 4826, 4940, 5207, 5330, 6175, 6350, 6604, 7790, 8255, 9652, 10127, 10414, 10660, 12065, 12350, 12700, 13325, 15580, 16510, 19475, 20254, 20828, 24130, 24700, 26035, 26650, 31369, 33020, 38950, 40508, 41275, 48260, 50635, 52070, 53300, 60325, 62738, 67691, 77900, 82550, 98933, 101270, 104140, 120650, 125476, 130175, 135382, 156845, 165100, 197866, 202540, 241300, 253175, 260350, 270764, 313690, 338455, 395732, 494665, 506350, 520700, 627380, 676910, 784225, 989330, 1012700, 1286129, 1353820, 1568450, 1692275, 1978660, 2473325, 2572258, 3136900, 3384550, 4946650, 5144516, 6430645, 6769100, 9893300, 12861290, 25722580, 32153225, 64306450, 128612900]

約数ペア:

[(1, 128612900), (2, 64306450), (4, 32153225), (5, 25722580), (10, 12861290), (13, 9893300), (19, 6769100), (20, 6430645), (25, 5144516), (26, 4946650), (38, 3384550), (41, 3136900), (50, 2572258), (52, 2473325), (65, 1978660), (76, 1692275), (82, 1568450), (95, 1353820), (100, 1286129), (127, 1012700), (130, 989330), (164, 784225), (190, 676910), (205, 627380), (247, 520700), (254, 506350), (260, 494665), (325, 395732), (380, 338455), (410, 313690), (475, 270764), (494, 260350), (508, 253175), (533, 241300), (635, 202540), (650, 197866), (779, 165100), (820, 156845), (950, 135382), (988, 130175), (1025, 125476), (1066, 120650), (1235, 104140), (1270, 101270), (1300, 98933), (1558, 82550), (1651, 77900), (1900, 67691), (2050, 62738), (2132, 60325), (2413, 53300), (2470, 52070), (2540, 50635), (2665, 48260), (3116, 41275), (3175, 40508), (3302, 38950), (3895, 33020), (4100, 31369), (4826, 26650), (4940, 26035), (5207, 24700), (5330, 24130), (6175, 20828), (6350, 20254), (6604, 19475), (7790, 16510), (8255, 15580), (9652, 13325), (10127, 12700), (10414, 12350), (10660, 12065)]