20492788425

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1\times {\mathrm{383}}^1$

素因数の和:839

約数の個数: 96

約数和(自身を含む): 35600007168

約数和(自身を除く): 15107218743

約数列:

[1, 3, 5, 15, 25, 43, 47, 75, 129, 141, 215, 235, 353, 383, 645, 705, 1059, 1075, 1149, 1175, 1765, 1915, 2021, 3225, 3525, 5295, 5745, 6063, 8825, 9575, 10105, 15179, 16469, 16591, 18001, 26475, 28725, 30315, 45537, 49407, 49773, 50525, 54003, 75895, 82345, 82955, 90005, 135199, 151575, 227685, 247035, 248865, 270015, 379475, 405597, 411725, 414775, 450025, 675995, 713413, 774043, 1138425, 1235175, 1244325, 1350075, 2027985, 2140239, 2322129, 3379975, 3567065, 3870215, 5813557, 6354353, 10139925, 10701195, 11610645, 17440671, 17835325, 19063059, 19351075, 29067785, 31771765, 53505975, 58053225, 87203355, 95315295, 145338925, 158858825, 273237179, 436016775, 476576475, 819711537, 1366185895, 4098557685, 6830929475, 20492788425]

約数ペア:

[(1, 20492788425), (3, 6830929475), (5, 4098557685), (15, 1366185895), (25, 819711537), (43, 476576475), (47, 436016775), (75, 273237179), (129, 158858825), (141, 145338925), (215, 95315295), (235, 87203355), (353, 58053225), (383, 53505975), (645, 31771765), (705, 29067785), (1059, 19351075), (1075, 19063059), (1149, 17835325), (1175, 17440671), (1765, 11610645), (1915, 10701195), (2021, 10139925), (3225, 6354353), (3525, 5813557), (5295, 3870215), (5745, 3567065), (6063, 3379975), (8825, 2322129), (9575, 2140239), (10105, 2027985), (15179, 1350075), (16469, 1244325), (16591, 1235175), (18001, 1138425), (26475, 774043), (28725, 713413), (30315, 675995), (45537, 450025), (49407, 414775), (49773, 411725), (50525, 405597), (54003, 379475), (75895, 270015), (82345, 248865), (82955, 247035), (90005, 227685), (135199, 151575)]