20605261560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{249217}}^1$

素因数の和:249297

約数の個数: 128

約数和(自身を含む): 67827170880

約数和(自身を除く): 47221909320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 53, 60, 65, 78, 104, 106, 120, 130, 156, 159, 195, 212, 260, 265, 312, 318, 390, 424, 520, 530, 636, 689, 780, 795, 1060, 1272, 1378, 1560, 1590, 2067, 2120, 2756, 3180, 3445, 4134, 5512, 6360, 6890, 8268, 10335, 13780, 16536, 20670, 27560, 41340, 82680, 249217, 498434, 747651, 996868, 1246085, 1495302, 1993736, 2492170, 2990604, 3239821, 3738255, 4984340, 5981208, 6479642, 7476510, 9719463, 9968680, 12959284, 13208501, 14953020, 16199105, 19438926, 25918568, 26417002, 29906040, 32398210, 38877852, 39625503, 48597315, 52834004, 64796420, 66042505, 77755704, 79251006, 97194630, 105668008, 129592840, 132085010, 158502012, 171710513, 194389260, 198127515, 264170020, 317004024, 343421026, 388778520, 396255030, 515131539, 528340040, 686842052, 792510060, 858552565, 1030263078, 1373684104, 1585020120, 1717105130, 2060526156, 2575657695, 3434210260, 4121052312, 5151315390, 6868420520, 10302630780, 20605261560]

約数ペア:

[(1, 20605261560), (2, 10302630780), (3, 6868420520), (4, 5151315390), (5, 4121052312), (6, 3434210260), (8, 2575657695), (10, 2060526156), (12, 1717105130), (13, 1585020120), (15, 1373684104), (20, 1030263078), (24, 858552565), (26, 792510060), (30, 686842052), (39, 528340040), (40, 515131539), (52, 396255030), (53, 388778520), (60, 343421026), (65, 317004024), (78, 264170020), (104, 198127515), (106, 194389260), (120, 171710513), (130, 158502012), (156, 132085010), (159, 129592840), (195, 105668008), (212, 97194630), (260, 79251006), (265, 77755704), (312, 66042505), (318, 64796420), (390, 52834004), (424, 48597315), (520, 39625503), (530, 38877852), (636, 32398210), (689, 29906040), (780, 26417002), (795, 25918568), (1060, 19438926), (1272, 16199105), (1378, 14953020), (1560, 13208501), (1590, 12959284), (2067, 9968680), (2120, 9719463), (2756, 7476510), (3180, 6479642), (3445, 5981208), (4134, 4984340), (5512, 3738255), (6360, 3239821), (6890, 2990604), (8268, 2492170), (10335, 1993736), (13780, 1495302), (16536, 1246085), (20670, 996868), (27560, 747651), (41340, 498434), (82680, 249217)]