20172089925

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{509}}^1\times {\mathrm{797}}^1$

素因数の和:1352

約数の個数: 144

約数和(自身を含む): 41331260880

約数和(自身を除く): 21159170955

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 39, 45, 51, 65, 75, 85, 117, 153, 195, 221, 225, 255, 325, 425, 509, 585, 663, 765, 797, 975, 1105, 1275, 1527, 1989, 2391, 2545, 2925, 3315, 3825, 3985, 4581, 5525, 6617, 7173, 7635, 8653, 9945, 10361, 11955, 12725, 13549, 16575, 19851, 19925, 22905, 25959, 31083, 33085, 35865, 38175, 40647, 43265, 49725, 51805, 59553, 59775, 67745, 77877, 93249, 99255, 112489, 114525, 121941, 129795, 155415, 165425, 176137, 179325, 203235, 216325, 259025, 297765, 337467, 338725, 389385, 405673, 466245, 496275, 528411, 562445, 609705, 648975, 777075, 880685, 1012401, 1016175, 1217019, 1488825, 1585233, 1687335, 1946925, 2028365, 2331225, 2642055, 2812225, 3048525, 3651057, 4403425, 5062005, 5273749, 6085095, 6896441, 7926165, 8436675, 10141825, 13210275, 15821247, 18255285, 20689323, 25310025, 26368745, 30425475, 34482205, 39630825, 47463741, 62067969, 79106235, 89653733, 91276425, 103446615, 131843725, 172411025, 237318705, 268961199, 310339845, 395531175, 448268665, 517233075, 806883597, 1186593525, 1344805995, 1551699225, 2241343325, 4034417985, 6724029975, 20172089925]

約数ペア:

[(1, 20172089925), (3, 6724029975), (5, 4034417985), (9, 2241343325), (13, 1551699225), (15, 1344805995), (17, 1186593525), (25, 806883597), (39, 517233075), (45, 448268665), (51, 395531175), (65, 310339845), (75, 268961199), (85, 237318705), (117, 172411025), (153, 131843725), (195, 103446615), (221, 91276425), (225, 89653733), (255, 79106235), (325, 62067969), (425, 47463741), (509, 39630825), (585, 34482205), (663, 30425475), (765, 26368745), (797, 25310025), (975, 20689323), (1105, 18255285), (1275, 15821247), (1527, 13210275), (1989, 10141825), (2391, 8436675), (2545, 7926165), (2925, 6896441), (3315, 6085095), (3825, 5273749), (3985, 5062005), (4581, 4403425), (5525, 3651057), (6617, 3048525), (7173, 2812225), (7635, 2642055), (8653, 2331225), (9945, 2028365), (10361, 1946925), (11955, 1687335), (12725, 1585233), (13549, 1488825), (16575, 1217019), (19851, 1016175), (19925, 1012401), (22905, 880685), (25959, 777075), (31083, 648975), (33085, 609705), (35865, 562445), (38175, 528411), (40647, 496275), (43265, 466245), (49725, 405673), (51805, 389385), (59553, 338725), (59775, 337467), (67745, 297765), (77877, 259025), (93249, 216325), (99255, 203235), (112489, 179325), (114525, 176137), (121941, 165425), (129795, 155415)]